diff --git a/src/backend/commands/cluster.c b/src/backend/commands/cluster.c
index 322d6bb2f1..0f0a6e9f01 100644
--- a/src/backend/commands/cluster.c
+++ b/src/backend/commands/cluster.c
@@ -232,7 +232,7 @@ cluster(ParseState *pstate, ClusterStmt *stmt, bool isTopLevel)
 	if (rel != NULL)
 	{
 		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-		check_index_is_clusterable(rel, indexOid, true, AccessShareLock);
+		check_index_is_clusterable(rel, indexOid, AccessShareLock);
 		rtcs = get_tables_to_cluster_partitioned(cluster_context, indexOid);
 
 		/* close relation, releasing lock on parent table */
@@ -434,7 +434,7 @@ cluster_rel(Oid tableOid, Oid indexOid, ClusterParams *params)
 
 	/* Check heap and index are valid to cluster on */
 	if (OidIsValid(indexOid))
-		check_index_is_clusterable(OldHeap, indexOid, recheck, AccessExclusiveLock);
+		check_index_is_clusterable(OldHeap, indexOid, AccessExclusiveLock);
 
 	/*
 	 * Quietly ignore the request if this is a materialized view which has not
@@ -480,7 +480,7 @@ cluster_rel(Oid tableOid, Oid indexOid, ClusterParams *params)
  * protection here.
  */
 void
-check_index_is_clusterable(Relation OldHeap, Oid indexOid, bool recheck, LOCKMODE lockmode)
+check_index_is_clusterable(Relation OldHeap, Oid indexOid, LOCKMODE lockmode)
 {
 	Relation	OldIndex;
 
diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c
index 90edd0bb97..1d7db41d17 100644
--- a/src/backend/commands/tablecmds.c
+++ b/src/backend/commands/tablecmds.c
@@ -14055,7 +14055,7 @@ ATExecClusterOn(Relation rel, const char *indexName, LOCKMODE lockmode)
 						indexName, RelationGetRelationName(rel))));
 
 	/* Check index is valid to cluster on */
-	check_index_is_clusterable(rel, indexOid, false, lockmode);
+	check_index_is_clusterable(rel, indexOid, lockmode);
 
 	/* And do the work */
 	mark_index_clustered(rel, indexOid, false);
diff --git a/src/include/commands/cluster.h b/src/include/commands/cluster.h
index 3c279f6210..df8e73af40 100644
--- a/src/include/commands/cluster.h
+++ b/src/include/commands/cluster.h
@@ -34,7 +34,7 @@ typedef struct ClusterParams
 extern void cluster(ParseState *pstate, ClusterStmt *stmt, bool isTopLevel);
 extern void cluster_rel(Oid tableOid, Oid indexOid, ClusterParams *params);
 extern void check_index_is_clusterable(Relation OldHeap, Oid indexOid,
-									   bool recheck, LOCKMODE lockmode);
+									   LOCKMODE lockmode);
 extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,