diff --git a/src/video/cocoa/SDL_cocoamessagebox.m b/src/video/cocoa/SDL_cocoamessagebox.m
index 2a8815564d..0684cf2490 100644
--- a/src/video/cocoa/SDL_cocoamessagebox.m
+++ b/src/video/cocoa/SDL_cocoamessagebox.m
@@ -31,7 +31,6 @@
     NSWindow *nswindow;
 }
 - (id)initWithParentWindow:(SDL_Window *)window;
-- (void)alertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo;
 @end
 
 @implementation SDLMessageBoxPresenter
@@ -55,39 +54,16 @@
 - (void)showAlert:(NSAlert *)alert
 {
     if (nswindow) {
-#ifdef MAC_OS_X_VERSION_10_9
-        if ([alert respondsToSelector:@selector(beginSheetModalForWindow:completionHandler:)]) {
-            [alert beginSheetModalForWindow:nswindow
-                          completionHandler:^(NSModalResponse returnCode) {
-                            self->clicked = returnCode;
-                          }];
-        } else
-#endif
-        {
-#if MAC_OS_X_VERSION_MIN_REQUIRED < 1090
-            [alert beginSheetModalForWindow:nswindow
-                              modalDelegate:self
-                             didEndSelector:@selector(alertDidEnd:returnCode:contextInfo:)
-                                contextInfo:nil];
-#endif
-        }
-
-        while (clicked < 0) {
-            SDL_PumpEvents();
-            SDL_Delay(100);
-        }
-
+        [alert beginSheetModalForWindow:nswindow
+                      completionHandler:^(NSModalResponse returnCode) {
+                        [NSApp stopModalWithCode:returnCode];
+                      }];
+        clicked = [NSApp runModalForWindow:nswindow];
         nswindow = nil;
     } else {
         clicked = [alert runModal];
     }
 }
-
-- (void)alertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo
-{
-    clicked = returnCode;
-}
-
 @end
 
 static void Cocoa_ShowMessageBoxImpl(const SDL_MessageBoxData *messageboxdata, int *buttonid, int *returnValue)