diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/ui/TripDetailsListFragment.java b/onebusaway-android/src/main/java/org/onebusaway/android/ui/TripDetailsListFragment.java
index 5be19cfeb..9f12b17d0 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/ui/TripDetailsListFragment.java
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/ui/TripDetailsListFragment.java
@@ -1231,7 +1231,9 @@ public void onReceive(Context context, Intent intent) {
                 mAdapter.notifyDataSetChanged();
 
                 // Unregister this receiver now
-                getActivity().unregisterReceiver(this);
+                if(getActivity() != null) {
+                   getActivity().unregisterReceiver(this);
+                }
             }
         }
     }