diff --git a/src/backend/utils/adt/ri_triggers.c b/src/backend/utils/adt/ri_triggers.c
index 06cf16d9d7..47d4965215 100644
--- a/src/backend/utils/adt/ri_triggers.c
+++ b/src/backend/utils/adt/ri_triggers.c
@@ -2130,9 +2130,6 @@ InvalidateConstraintCacheCallBack(Datum arg, int cacheid, uint32 hashvalue)
 
 /*
  * Prepare execution plan for a query to enforce an RI restriction
- *
- * If cache_plan is true, the plan is saved into our plan hashtable
- * so that we don't need to plan it again.
  */
 static SPIPlanPtr
 ri_PlanCheck(const char *querystr, int nargs, Oid *argtypes,