diff --git a/desmume/src/windows/video.h b/desmume/src/windows/video.h
index 253223b92..693ee226b 100644
--- a/desmume/src/windows/video.h
+++ b/desmume/src/windows/video.h
@@ -34,8 +34,8 @@ public:
 	int currentfilter;
 
 	u8* srcBuffer;
-	CACHE_ALIGN u32 buffer[16*256*192*2];
-	CACHE_ALIGN u32 filteredbuffer[16*256*192*2];
+	CACHE_ALIGN u32 buffer[5*5*256*192*2];
+	CACHE_ALIGN u32 filteredbuffer[5*5*256*192*2];
 
 	enum {
 		NONE,