diff --git a/src/backend/executor/nodeIndexonlyscan.c b/src/backend/executor/nodeIndexonlyscan.c
index b912f4b7a5c..f452e0fd5ff 100644
--- a/src/backend/executor/nodeIndexonlyscan.c
+++ b/src/backend/executor/nodeIndexonlyscan.c
@@ -84,8 +84,8 @@ IndexOnlyNext(IndexOnlyScanState *node)
 	{
 		/*
 		 * We reach here if the index only scan is not parallel, or if we're
-		 * executing a index only scan that was intended to be parallel
-		 * serially.
+		 * serially executing an index only scan that was planned to be
+		 * parallel.
 		 */
 		scandesc = index_beginscan(node->ss.ss_currentRelation,
 								   node->ioss_RelationDesc,
diff --git a/src/backend/executor/nodeIndexscan.c b/src/backend/executor/nodeIndexscan.c
index f46bc23ae85..700d7635f3c 100644
--- a/src/backend/executor/nodeIndexscan.c
+++ b/src/backend/executor/nodeIndexscan.c
@@ -108,7 +108,7 @@ IndexNext(IndexScanState *node)
 	{
 		/*
 		 * We reach here if the index scan is not parallel, or if we're
-		 * executing a index scan that was intended to be parallel serially.
+		 * serially executing an index scan that was planned to be parallel.
 		 */
 		scandesc = index_beginscan(node->ss.ss_currentRelation,
 								   node->iss_RelationDesc,
@@ -215,7 +215,7 @@ IndexNextWithReorder(IndexScanState *node)
 	{
 		/*
 		 * We reach here if the index scan is not parallel, or if we're
-		 * executing a index scan that was intended to be parallel serially.
+		 * serially executing an index scan that was planned to be parallel.
 		 */
 		scandesc = index_beginscan(node->ss.ss_currentRelation,
 								   node->iss_RelationDesc,
diff --git a/src/backend/executor/nodeSeqscan.c b/src/backend/executor/nodeSeqscan.c
index d4ac939c9b0..18c246e49a0 100644
--- a/src/backend/executor/nodeSeqscan.c
+++ b/src/backend/executor/nodeSeqscan.c
@@ -66,8 +66,8 @@ SeqNext(SeqScanState *node)
 	if (scandesc == NULL)
 	{
 		/*
-		 * We reach here if the scan is not parallel, or if we're executing a
-		 * scan that was intended to be parallel serially.
+		 * We reach here if the scan is not parallel, or if we're serially
+		 * executing a scan that was planned to be parallel.
 		 */
 		scandesc = heap_beginscan(node->ss.ss_currentRelation,
 								  estate->es_snapshot,