diff --git a/src/video/cocoa/SDL_cocoaevents.m b/src/video/cocoa/SDL_cocoaevents.m
index a219e29ac..b3baa8378 100644
--- a/src/video/cocoa/SDL_cocoaevents.m
+++ b/src/video/cocoa/SDL_cocoaevents.m
@@ -36,6 +36,22 @@
 #define UsrActivity 1
 #endif
 
+@interface SDLApplication : NSApplication
+
+- (void)terminate:(id)sender;
+
+@end
+
+@implementation SDLApplication
+
+// Override terminate to handle Quit and System Shutdown smoothly.
+- (void)terminate:(id)sender
+{
+    SDL_SendQuit();
+}
+
+@end // SDLApplication
+
 /* setAppleMenu disappeared from the headers in 10.4 */
 @interface NSApplication(NSAppleMenu)
 - (void)setAppleMenu:(NSMenu *)menu;
@@ -71,12 +87,6 @@
     [super dealloc];
 }
 
-- (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender
-{
-    SDL_SendQuit();
-    return NSTerminateCancel;
-}
-
 - (void)focusSomeWindow:(NSNotification *)aNotification
 {
     /* HACK: Ignore the first call. The application gets a
@@ -255,7 +265,7 @@ Cocoa_RegisterApp(void)
 
     pool = [[NSAutoreleasePool alloc] init];
     if (NSApp == nil) {
-        [NSApplication sharedApplication];
+        [SDLApplication sharedApplication];
 
         if ([NSApp mainMenu] == nil) {
             CreateApplicationMenus();