diff --git a/core/rend/TexCache.h b/core/rend/TexCache.h
index 0af91f646..11abc598c 100644
--- a/core/rend/TexCache.h
+++ b/core/rend/TexCache.h
@@ -114,9 +114,9 @@ struct pp_8888
 	__forceinline static u32 packRGB(u8 R,u8 G,u8 B)
 	{
 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ && defined(GLES)
-		return (R << 0) | (G << 8) | (B << 16);
+		return (R << 0) | (G << 8) | (B << 16) | 0xFF000000;
 #else
-		return (R << 24) | (G << 16) | (B << 8);
+		return (R << 24) | (G << 16) | (B << 8) | 0xFF;
 #endif
 	}
 };