diff --git a/lib/client.coffee b/lib/client.coffee
index 73bb29c..bfadaed 100644
--- a/lib/client.coffee
+++ b/lib/client.coffee
@@ -1,4 +1,3 @@
-
 # Check for cache events on update and automatically refresh. Makes online-mode
 # work more like the traditional web.
 
@@ -6,9 +5,9 @@ appCache = window.applicationCache
 
 exports.autoReload = true
 
-window.addEventListener 'load', (e) ->
-  appCache.addEventListener 'updateready', (e) ->
-    if appCache.status ==  appCache.UPDATEREADY
-      appCache.swapCache()
-      window.location.reload() if exports.autoReload
-
+if appCache
+  window.addEventListener 'load', (e) ->
+    appCache.addEventListener 'updateready', (e) ->
+      if appCache.status ==  appCache.UPDATEREADY
+        appCache.swapCache()
+        window.location.reload() if exports.autoReload