diff --git a/js/controllers/navController.js b/js/controllers/navController.js
index 08f1282dc0..2546ae5c2c 100644
--- a/js/controllers/navController.js
+++ b/js/controllers/navController.js
@@ -102,4 +102,4 @@
     },
 
   };
-})(window.ionic);
+})(ionic = window.ionic || {});
diff --git a/js/controllers/sideMenuController.js b/js/controllers/sideMenuController.js
index 08c2ebabed..52db8762e2 100644
--- a/js/controllers/sideMenuController.js
+++ b/js/controllers/sideMenuController.js
@@ -188,4 +188,4 @@
     }
   };
 
-})(window.ionic);
+})(ionic = window.ionic || {});
diff --git a/js/controllers/tabBarController.js b/js/controllers/tabBarController.js
index 2c111bbd85..1be132017c 100644
--- a/js/controllers/tabBarController.js
+++ b/js/controllers/tabBarController.js
@@ -119,4 +119,4 @@ TabBarController.prototype = {
   },
 }
 
-})(window.ionic);
+})(ionic = window.ionic || {});
diff --git a/js/events.js b/js/events.js
index 5c2026fce8..ce0d5bebcb 100644
--- a/js/events.js
+++ b/js/events.js
@@ -106,4 +106,4 @@
   // Set up various listeners
   window.addEventListener('click', ionic.EventController.handleClick);
 
-})(window.ionic);
+})(ionic = window.ionic || {});
diff --git a/js/gestures.js b/js/gestures.js
index 7dbb356e2e..d111d92806 100644
--- a/js/gestures.js
+++ b/js/gestures.js
@@ -1425,4 +1425,4 @@
       }
     }
   };
-})(window.ionic);
+})(ionic = window.ionic || {});
diff --git a/js/utils.js b/js/utils.js
index c6cecece1f..43094aa59b 100644
--- a/js/utils.js
+++ b/js/utils.js
@@ -19,4 +19,4 @@
       return dest;
     },
   }
-})(window.ionic);
+})(ionic = window.ionic || {});
diff --git a/js/viewController.js b/js/viewController.js
index bef7817668..eec9f769fc 100644
--- a/js/viewController.js
+++ b/js/viewController.js
@@ -11,4 +11,4 @@
     destroy: function() {
     }
   };
-})(window.ionic);
+})(ionic = window.ionic || {});
diff --git a/js/views/navBar.js b/js/views/navBar.js
index be9a0c730f..bc70aabe90 100644
--- a/js/views/navBar.js
+++ b/js/views/navBar.js
@@ -39,4 +39,4 @@
       }
     }
   };
-})(window.ionic);
+})(ionic = window.ionic || {});
diff --git a/js/views/sideMenu.js b/js/views/sideMenu.js
index 234f095fdc..5517e32a5f 100644
--- a/js/views/sideMenu.js
+++ b/js/views/sideMenu.js
@@ -19,4 +19,4 @@
       this.el.style.zIndex = -1;
     }
   };
-})(window.ionic);
+})(ionic = window.ionic || {});
diff --git a/js/views/tabBar.js b/js/views/tabBar.js
index 5010220a12..5e5e00e13b 100644
--- a/js/views/tabBar.js
+++ b/js/views/tabBar.js
@@ -198,4 +198,4 @@ TabBar.prototype = {
   }
 };
 
-})(window.ionic);
+})(ionic = window.ionic || {});