diff --git a/lib/edit/OfflineEditNS.js b/lib/edit/OfflineEditNS.js
index b8dcb69..29703bf 100644
--- a/lib/edit/OfflineEditNS.js
+++ b/lib/edit/OfflineEditNS.js
@@ -1,3 +1,7 @@
+/**
+ * Creates a namespace for the non-AMD libraries in this directory
+ */
+
 (function(){
 
     if(typeof O != "undefined"){
@@ -12,3 +16,5 @@
     }
 
 }())
+
+"use strict";
diff --git a/lib/tiles/OfflineTilesNS.js b/lib/tiles/OfflineTilesNS.js
index 6fc4c9a..41e0c9b 100644
--- a/lib/tiles/OfflineTilesNS.js
+++ b/lib/tiles/OfflineTilesNS.js
@@ -1,3 +1,7 @@
+/**
+ * Creates a namespace for the non-AMD libraries in this directory
+ */
+
 (function(){
 
     if(typeof O != "undefined"){
diff --git a/lib/tpk/OfflineTpkNS.js b/lib/tpk/OfflineTpkNS.js
index 1324084..72f7b75 100644
--- a/lib/tpk/OfflineTpkNS.js
+++ b/lib/tpk/OfflineTpkNS.js
@@ -1,3 +1,7 @@
+/**
+ * Creates a namespace for the non-AMD libraries in this directory
+ */
+
 (function(){
 
     if(typeof O != "undefined"){
@@ -7,8 +11,11 @@
         O = {};
         O.esri = {
             VERSION: '2.0',
-            TPK: {}
+            TPK: {},
+            Tiles: {}
         }
     }
 
 }())
+
+"use strict";