diff --git a/src/bin/pgbench/pgbench.c b/src/bin/pgbench/pgbench.c
index ba7b35d83c..e69d43b26b 100644
--- a/src/bin/pgbench/pgbench.c
+++ b/src/bin/pgbench/pgbench.c
@@ -2823,13 +2823,12 @@ readCommandResponse(CState *st, MetaCommand meta, char *varprefix)
 	int			qrynum = 0;
 
 	/*
-	 * varprefix should be set only with \gset or \aset, and SQL commands do
-	 * not need it.
+	 * varprefix should be set only with \gset or \aset, and \endpipeline and
+	 * SQL commands do not need it.
 	 */
-#if 0
 	Assert((meta == META_NONE && varprefix == NULL) ||
+		   ((meta == META_ENDPIPELINE) && varprefix == NULL) ||
 		   ((meta == META_GSET || meta == META_ASET) && varprefix != NULL));
-#endif
 
 	res = PQgetResult(st->con);