diff --git a/rs.spec b/rs.spec
index 8a25a97..27bb006 100644
--- a/rs.spec
+++ b/rs.spec
@@ -127,6 +127,12 @@
 	ret RsAllocation
 	}
 
+AllocationUpdateFromBitmap {
+	param RsAllocation alloc
+	param RsElement srcFmt
+	param const void * data
+	}
+
 AllocationCreateBitmapRef {
 	param RsType type
 	param void * bmpPtr