diff --git a/orbicular.js b/orbicular.js
index d12950e..7f9b304 100644
--- a/orbicular.js
+++ b/orbicular.js
@@ -1,134 +1,145 @@
 /**
-*    CoTag Orbicular
-*    A more or less pure CSS, circular, progress bar
-*    
-*   Copyright (c) 2014 CoTag Media.
-*    
-*    @author     Stephen von Takach <steve@cotag.me>
-*    @copyright  2014 cotag.me
-* 
-*     
-*     References:
-*        * http://fromanegg.com/post/41302147556/100-pure-css-radial-progress-bar
-*        * https://medium.com/@andsens/radial-progress-indicator-using-css-a917b80c43f9
-*
-**/
-
-
-(function (angular) {
-    'use strict';
-
-    angular.module('Orbicular', []).
-
-        // isolated circular progress bar
-        directive('orbicular', ['$window', function (windowRef) {
-
-            // Constants here reduce memory requirements of each circle
-            var $window = angular.element(windowRef),
-
-                // Cache event strings
-                resizeEvents = 'orientationchange resize',
-
-                // Set the rotation of the square
-                updateProgress = function (circles, fix, pos) {
-                    circles.css({
-                        '-webkit-transform': 'rotate(' + pos + 'deg)',
-                        '-moz-transform': 'rotate(' + pos + 'deg)',
-                        '-ms-transform': 'rotate(' + pos + 'deg)',
-                        '-o-transform': 'rotate(' + pos + 'deg)',
-                        'transform': 'rotate(' + pos + 'deg)'
-                    });
-                    pos = pos * 2;
-                    fix.css({
-                        '-webkit-transform': 'rotate(' + pos + 'deg)',
-                        '-moz-transform': 'rotate(' + pos + 'deg)',
-                        '-ms-transform': 'rotate(' + pos + 'deg)',
-                        '-o-transform': 'rotate(' + pos + 'deg)',
-                        'transform': 'rotate(' + pos + 'deg)'
-                    });
-                };
-
-            return {
-                template: '<div class="co-circle-progress">' +
-                            '<div class="co-circle co-full">' +
-                                '<div class="co-fill"></div>' +
-                            '</div>' +
-                            '<div class="co-circle co-half">' +
-                                '<div class="co-fill"></div>' +
-                                '<div class="co-fill co-fix"></div>' +
-                            '</div>' +
-                            // optional shadow
-                            '<div class="co-shadow"></div>' +
-                            '<div class="co-content">' +
-                                '<div><div>' +
-                                    '<div ng-transclude></div>' +
-                                '</div></div>' +
-                            '</div>' +
-                        '</div>',
-                transclude: true,
-                replace: true,
-                restrict: 'EA',
-                scope: {
-                    current: '=progression',
-                    total: '='
-                },
-                link: function (scope, element, attrs) {
-                    var circles = [],
-                        fix,
-
-                        // Width must be an even number of pixels for the effect to work.
-                        setWidth = function () {
-                            var width = element.prop('offsetWidth');
-                            element.css('font-size', width - (width % 2) + 'px');
-                        },
-                        
-                        update = function () {
-                            updateProgress(circles, fix, 
-                                scope.current / scope.total * 180.0
-                            );
-                        };
-
-
-                    // circles = element.find('div.co-full, div.co-fill')
-                    circles.push(element.children()[0]);
-                    circles.push(
-                        angular.element(
-                            element.children()[0]
-                        ).children()[0]
-                    );
-                    circles.push(
-                        angular.element(
-                            element.children()[1]
-                        ).children()[0]
-                    );
-                    circles = angular.element(circles);
-
-                    // fix = element.find('div.co-fix')
-                    fix = angular.element(
-                        angular.element(
-                            element.children()[1]
-                        ).children()[1]
-                    );
-
-
-                    // we have to use em's for the clip function to work like a percentage
-                    // so we have to manually perform the resize based on width
-                    setWidth();
-                    scope.$on('orb width', setWidth); // for programmatic resizing
-
-                    // Optionally resize
-                    if (attrs.hasOwnProperty('resize')) {
-                        scope.$on('$destroy', function () {
-                            $window.off(resizeEvents, setWidth);
-                        });
-                        $window.on(resizeEvents, setWidth);
-                    }
-
-                    // we watch for changes to the progress indicator of the parent scope
-                    scope.$watch('current', update);
-                    scope.$watch('total',   update);
-                }
-            };
-        }]);
-
-}(this.angular));
+ *    CoTag Orbicular
+ *    A more or less pure CSS, circular, progress bar
+ *
+ *   Copyright (c) 2014 CoTag Media.
+ *
+ *    @author     Stephen von Takach <steve@cotag.me>
+ *    @copyright  2014 cotag.me
+ *
+ *
+ *     References:
+ *        * http://fromanegg.com/post/41302147556/100-pure-css-radial-progress-bar
+ *        * https://medium.com/@andsens/radial-progress-indicator-using-css-a917b80c43f9
+ *
+ **/
+
+
+(function () {
+  'use strict';
+
+  if (typeof define === 'function' && define.amd) {
+    define('Orbicular', ['angular'], angularOrbicular);
+  } else {
+    angularOrbicular(angular);
+  }
+
+  function angularOrbicular(angular) {
+    return angular.module('Orbicular', []).
+
+      // isolated circular progress bar
+      directive('orbicular', ['$window', function (windowRef) {
+
+        // Constants here reduce memory requirements of each circle
+        var $window = angular.element(windowRef),
+
+        // Cache event strings
+          resizeEvents = 'orientationchange resize',
+
+        // Set the rotation of the square
+          updateProgress = function (circles, fix, pos) {
+            circles.css({
+              '-webkit-transform': 'rotate(' + pos + 'deg)',
+              '-moz-transform': 'rotate(' + pos + 'deg)',
+              '-ms-transform': 'rotate(' + pos + 'deg)',
+              '-o-transform': 'rotate(' + pos + 'deg)',
+              'transform': 'rotate(' + pos + 'deg)'
+            });
+            pos = pos * 2;
+            fix.css({
+              '-webkit-transform': 'rotate(' + pos + 'deg)',
+              '-moz-transform': 'rotate(' + pos + 'deg)',
+              '-ms-transform': 'rotate(' + pos + 'deg)',
+              '-o-transform': 'rotate(' + pos + 'deg)',
+              'transform': 'rotate(' + pos + 'deg)'
+            });
+          };
+
+        return {
+          template:
+            '<div class="co-circle-progress">' +
+              '<div class="co-circle co-full">' +
+                '<div class="co-fill"></div>' +
+              '</div>' +
+              '<div class="co-circle co-half">' +
+                '<div class="co-fill"></div>' +
+                '<div class="co-fill co-fix"></div>' +
+              '</div>' +
+
+              // optional shadow
+              '<div class="co-shadow"></div>' +
+              '<div class="co-content">' +
+                '<div>' +
+                  '<div>' +
+                    '<div ng-transclude></div>' +
+                  '</div>' +
+                '</div>' +
+              '</div>' +
+            '</div>',
+          transclude: true,
+          replace: true,
+          restrict: 'EA',
+          scope: {
+            current: '=progression',
+            total: '='
+          },
+          link: function (scope, element, attrs) {
+            var circles = [],
+              fix,
+
+            // Width must be an even number of pixels for the effect to work.
+              setWidth = function () {
+                var width = element.prop('offsetWidth');
+                element.css('font-size', width - (width % 2) + 'px');
+              },
+
+              update = function () {
+                updateProgress(circles, fix,
+                  scope.current / scope.total * 180.0
+                );
+              };
+
+
+            // circles = element.find('div.co-full, div.co-fill')
+            circles.push(element.children()[0]);
+            circles.push(
+              angular.element(
+                element.children()[0]
+              ).children()[0]
+            );
+            circles.push(
+              angular.element(
+                element.children()[1]
+              ).children()[0]
+            );
+            circles = angular.element(circles);
+
+            // fix = element.find('div.co-fix')
+            fix = angular.element(
+              angular.element(
+                element.children()[1]
+              ).children()[1]
+            );
+
+
+            // we have to use em's for the clip function to work like a percentage
+            // so we have to manually perform the resize based on width
+            setWidth();
+            scope.$on('orb width', setWidth); // for programmatic resizing
+
+            // Optionally resize
+            if (attrs.hasOwnProperty('resize')) {
+              scope.$on('$destroy', function () {
+                $window.off(resizeEvents, setWidth);
+              });
+              $window.on(resizeEvents, setWidth);
+            }
+
+            // we watch for changes to the progress indicator of the parent scope
+            scope.$watch('current', update);
+            scope.$watch('total', update);
+          }
+        };
+      }]);
+  }
+}());