diff --git a/Terminal Notifier/AppDelegate.m b/Terminal Notifier/AppDelegate.m
index 5f7f469..4428492 100644
--- a/Terminal Notifier/AppDelegate.m	
+++ b/Terminal Notifier/AppDelegate.m	
@@ -219,7 +219,7 @@ - (void)applicationDidFinishLaunching:(NSNotification *)notification;
 
       if (defaults[@"open"]) {
         NSURL *url = [NSURL URLWithString:defaults[@"open"]];
-        if (url && url.scheme && url.host) {
+        if ((url && url.scheme && url.host) || [url isFileURL]) {
           options[@"open"] = defaults[@"open"];
         }else{
           NSLog(@"'%@' is not a valid URI.", defaults[@"open"]);