diff --git a/src/c3nav/editor/static/editor/js/editor.js b/src/c3nav/editor/static/editor/js/editor.js
index 07561d8f..91f7cff7 100644
--- a/src/c3nav/editor/static/editor/js/editor.js
+++ b/src/c3nav/editor/static/editor/js/editor.js
@@ -137,7 +137,7 @@ editor = {
 
         $('#sidebar').addClass('loading').find('.content').html('');
         editor._cancel_editing();
-        if (mobileclient.wificollectorStop && $('#sidebar').find('.wificollector.running').length) {
+        if (mobileclient && mobileclient.wificollectorStop && $('#sidebar').find('.wificollector.running').length) {
             mobileclient.wificollectorStop();
         }
     },