diff --git a/gordon/resources/lambdas.py b/gordon/resources/lambdas.py
index ec8b50f..691e853 100644
--- a/gordon/resources/lambdas.py
+++ b/gordon/resources/lambdas.py
@@ -472,6 +472,9 @@ def get_zip_file(self):
                     for filename in files:
                         source = os.path.join(destination, basedir, filename)
                         relative_destination = os.path.join(relative, filename)
+                        if six.PY2:
+                            source = source.decode('utf-8', errors='strict')
+                            relative_destination = relative_destination.decode('utf-8', errors='strict')
                         zf.write(source, relative_destination)
 
             tmp.seek(0)