diff --git a/contrib/file_fdw/file_fdw.c b/contrib/file_fdw/file_fdw.c
index fbcf7ca9c91..44acbac2f1a 100644
--- a/contrib/file_fdw/file_fdw.c
+++ b/contrib/file_fdw/file_fdw.c
@@ -723,9 +723,6 @@ fileIterateForeignScan(ForeignScanState *node)
 	 *
 	 * We can pass ExprContext = NULL because we read all columns from the
 	 * file, so no need to evaluate default expressions.
-	 *
-	 * We can also pass tupleOid = NULL because we don't allow oids for
-	 * foreign tables.
 	 */
 	ExecClearTuple(slot);
 	found = NextCopyFrom(festate->cstate, NULL,
diff --git a/src/backend/commands/copy.c b/src/backend/commands/copy.c
index 6d53dc463c1..48dc9414ac2 100644
--- a/src/backend/commands/copy.c
+++ b/src/backend/commands/copy.c
@@ -3629,7 +3629,6 @@ NextCopyFromRawFields(CopyState cstate, char ***fields, int *nfields)
  *
  * 'values' and 'nulls' arrays must be the same length as columns of the
  * relation passed to BeginCopyFrom. This function fills the arrays.
- * Oid of the tuple is returned with 'tupleOid' separately.
  */
 bool
 NextCopyFrom(CopyState cstate, ExprContext *econtext,