diff --git a/lib/device/drivers/detection.js b/lib/device/drivers/detection.js
index d5dd1ebf..643ea2e6 100644
--- a/lib/device/drivers/detection.js
+++ b/lib/device/drivers/detection.js
@@ -46,7 +46,7 @@ module.exports = {
       if (_.has(d, 'facialRecognition')) {
         o.demographics = _.reduce(d.facialRecognition, function (r, v, k) {
           // translate from { tag: 'EMOTION', emotion: 'HAPPY' to { emotion: 'happy' }
-          var tag = v.tag.toLowerCase();
+          var tag = v.tag.toString().toLowerCase();
           if (_.has(v, tag)) {
             // simple values
             r[tag] = v[tag];
@@ -132,4 +132,4 @@ module.exports = {
     }
 
   }
-};
\ No newline at end of file
+};
diff --git a/package.json b/package.json
index e6b2cceb..ec93e11d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "matrix-os",
-  "version": "0.16.0",
+  "version": "0.17.1",
   "description": "Portal to device layer for AdMobilize Matrix devices. Includes global component, npm install -g matrix-cli",
   "main": "app.js",
   "repository": "http://github.com/matrix-io/matrix-os",
@@ -74,4 +74,4 @@
   "engines": {
     "node": ">=0.12.7 <=6.5"
   }
-}
\ No newline at end of file
+}