diff --git a/src/include/catalog/pg_type.h b/src/include/catalog/pg_type.h
index 86be9983e9..d0fe7c5399 100644
--- a/src/include/catalog/pg_type.h
+++ b/src/include/catalog/pg_type.h
@@ -573,6 +573,7 @@ DATA(insert OID = 2211 ( _regtype	   PGNSP PGUID -1 f b A f t \054 0 2206 0 arra
 /* uuid */
 DATA(insert OID = 2950 ( uuid			PGNSP PGUID 16 f b U f t \054 0 0 2951 uuid_in uuid_out uuid_recv uuid_send - - - c p f 0 -1 0 0 _null_ _null_ _null_ ));
 DESCR("UUID datatype");
+#define UUIDOID 2950
 DATA(insert OID = 2951 ( _uuid			PGNSP PGUID -1 f b A f t \054 0 2950 0 array_in array_out array_recv array_send - - array_typanalyze i x f 0 -1 0 0 _null_ _null_ _null_ ));
 
 /* text search */