diff --git a/gralloc/QtiGrallocDefs.h b/gralloc/QtiGrallocDefs.h
index 1ed71028..b314d70f 100644
--- a/gralloc/QtiGrallocDefs.h
+++ b/gralloc/QtiGrallocDefs.h
@@ -90,6 +90,9 @@
 /* This flag is used to indicate No UBWC-P support */
 #define GRALLOC_USAGE_PRIVATE_NO_UBWC_P          1ULL << 54
 
+/* This flag is used to indicate UBWC_NV124R format usage */
+#define GRALLOC_USAGE_PRIVATE_ALLOC_UBWC_4R      1ULL << 55
+
 // OEM specific HAL formats
 #define HAL_PIXEL_FORMAT_RGBA_5551 6
 #define HAL_PIXEL_FORMAT_RGBA_4444 7