diff --git a/MupenGameCore.m b/MupenGameCore.m
index 73ff3c1..7d7a454 100644
--- a/MupenGameCore.m
+++ b/MupenGameCore.m
@@ -574,7 +574,7 @@ - (void)loadStateFromFileAtPath:(NSString *)fileName completionHandler:(void (^)
 
 - (OEIntSize)aspectSize
 {
-    return OEIntSizeMake(videoWidth * (120.0 / 119.0), videoHeight);
+    return OEIntSizeMake(isNTSC ? videoWidth * (120.0 / 119.0) : videoWidth, videoHeight);
 }
 
 - (OEIntSize)bufferSize