diff --git a/AppController.m b/AppController.m
index 8dab788..35aaf1f 100644
--- a/AppController.m
+++ b/AppController.m
@@ -76,6 +76,7 @@
 
 - (BOOL)application:(NSApplication *)application openFile:(NSString *)fileName
 {
+    return NO;
 }
 
 - (void)showPrefPanel:(id)sender