diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index 3def1b63e6..b2f844ff8c 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -34,7 +34,7 @@
 
 #define STR(s) AV_TOSTRING(s) // AV_STRINGIFY is too long
 
-#define YUVRGB_TABLE_HEADROOM 128
+#define YUVRGB_TABLE_HEADROOM 256
 
 #define FAST_BGR2YV12 // use 7-bit instead of 15-bit coefficients