diff --git a/AppKit/CPApplication.j b/AppKit/CPApplication.j
index 399b272f5..5b79154c3 100644
--- a/AppKit/CPApplication.j
+++ b/AppKit/CPApplication.j
@@ -135,19 +135,19 @@ CPRunContinuesResponse  = -1002;
         [_mainMenu addItem:openMenuItem];
         
         var saveMenu = [[CPMenu alloc] initWithTitle:@"Save"],
-            saveMenuItem = [[CPMenuItem alloc] initWithTitle:@"Save" action:@selector(saveDocument:) keyEquivalent:@""];
+            saveMenuItem = [[CPMenuItem alloc] initWithTitle:@"Save" action:@selector(saveDocument:) keyEquivalent:nil];
         
         [saveMenuItem setImage:[[CPImage alloc] initWithContentsOfFile:[bundle pathForResource:@"CPApplication/Save.png"] size:CGSizeMake(16.0, 16.0)]];
         [saveMenuItem setAlternateImage:[[CPImage alloc] initWithContentsOfFile:[bundle pathForResource:@"CPApplication/SaveHighlighted.png"] size:CGSizeMake(16.0, 16.0)]];        
         
         [saveMenu addItem:[[CPMenuItem alloc] initWithTitle:@"Save" action:@selector(saveDocument:) keyEquivalent:@"S"]];
-        [saveMenu addItem:[[CPMenuItem alloc] initWithTitle:@"Save As" action:@selector(saveDocumentAs:) keyEquivalent:@""]];
+        [saveMenu addItem:[[CPMenuItem alloc] initWithTitle:@"Save As" action:@selector(saveDocumentAs:) keyEquivalent:nil]];
         
         [saveMenuItem setSubmenu:saveMenu];
         
         [_mainMenu addItem:saveMenuItem];
         
-        var editMenuItem = [[CPMenuItem alloc] initWithTitle:@"Edit" action:nil keyEquivalent:@""],
+        var editMenuItem = [[CPMenuItem alloc] initWithTitle:@"Edit" action:nil keyEquivalent:nil],
             editMenu = [[CPMenu alloc] initWithTitle:@"Edit"],
             
             undoMenuItem = [[CPMenuItem alloc] initWithTitle:@"Undo" action:@selector(undo:) keyEquivalent:CPUndoKeyEquivalent],
diff --git a/AppKit/CPPopUpButton.j b/AppKit/CPPopUpButton.j
index 32eabce09..3721a29de 100644
--- a/AppKit/CPPopUpButton.j
+++ b/AppKit/CPPopUpButton.j
@@ -143,7 +143,7 @@ var CPPopUpButtonArrowsImage = nil;
 */
 - (void)addItemWithTitle:(CPString)aTitle
 {
-    [_menu addItemWithTitle:aTitle action:NULL keyEquivalent:NULL];
+    [_menu addItemWithTitle:aTitle action:NULL keyEquivalent:nil];
 }
 
 /*!
@@ -173,7 +173,7 @@ var CPPopUpButtonArrowsImage = nil;
         if ([items[count] title] == aTitle)
             [self removeItemAtIndex:count];
         
-    [_menu insertItemWithTitle:aTitle action:NULL keyEquivalent:NULL atIndex:anIndex];
+    [_menu insertItemWithTitle:aTitle action:NULL keyEquivalent:nil atIndex:anIndex];
 }
 
 /*!