diff --git a/src/backend/executor/execGrouping.c b/src/backend/executor/execGrouping.c
index 4a8f72305c..7491e53c03 100644
--- a/src/backend/executor/execGrouping.c
+++ b/src/backend/executor/execGrouping.c
@@ -236,9 +236,9 @@ BuildTupleHashTableExt(PlanState *parent,
 														hash_iv);
 
 	/* build comparator for all columns */
-	/* XXX: should we support non-minimal tuples for the inputslot? */
 	hashtable->tab_eq_func = ExecBuildGroupingEqual(inputDesc, inputDesc,
-													&TTSOpsMinimalTuple, &TTSOpsMinimalTuple,
+													inputOps,
+													&TTSOpsMinimalTuple,
 													numCols,
 													keyColIdx, eqfuncoids, collations,
 													allow_jit ? parent : NULL);