diff --git a/src/backend/optimizer/util/pathnode.c b/src/backend/optimizer/util/pathnode.c
index d9651d8090..c5aaaf5c22 100644
--- a/src/backend/optimizer/util/pathnode.c
+++ b/src/backend/optimizer/util/pathnode.c
@@ -3817,7 +3817,7 @@ do { \
 			}
 			break;
 
-		case T_MergeAppend:
+		case T_MergeAppendPath:
 			{
 				MergeAppendPath *mapath;