diff --git a/widget/src/gtk/nsDragService.cpp b/widget/src/gtk/nsDragService.cpp
index 75b3a4af071..7bec982f5bd 100644
--- a/widget/src/gtk/nsDragService.cpp
+++ b/widget/src/gtk/nsDragService.cpp
@@ -1009,6 +1009,7 @@ nsDragService::SourceDataGet(GtkWidget        *aWidget,
   // check to make sure that we have data items to return.
   if (!mSourceDataItems) {
     PR_LOG(sDragLm, PR_LOG_DEBUG, ("Failed to get our data items\n"));
+    return;
   }
 
   if (strcmp(mimeFlavor, gTextUriListType) == 0) {