diff --git a/desmume/src/frontend/cocoa/cocoa_cheat.mm b/desmume/src/frontend/cocoa/cocoa_cheat.mm
index a5c7e47b5..80036c526 100644
--- a/desmume/src/frontend/cocoa/cocoa_cheat.mm
+++ b/desmume/src/frontend/cocoa/cocoa_cheat.mm
@@ -739,6 +739,7 @@ static NSImage *iconCodeBreaker = nil;
 	self.dbDate = nil;
 	[list release];
 	delete (CHEATS *)self.listData;
+	cheats = NULL;
 	
 	if (isUsingDummyRWlock)
 	{