diff --git a/libvo/gl_common.h b/libvo/gl_common.h
index 982d5551b7..927e887c6b 100644
--- a/libvo/gl_common.h
+++ b/libvo/gl_common.h
@@ -239,6 +239,8 @@ int loadGPUProgram(GLenum target, char *prog);
 #define YUV_SCALER_BILIN 0
 //! use higher quality bicubic scaling for textures
 #define YUV_SCALER_BICUB 1
+//! use cubic scaling in X and normal linear scaling in Y direction
+#define YUV_SCALER_BICUB_X 2
 //! mask for conversion type
 #define YUV_CONVERSION_MASK 0xF
 //! mask for scaler type