diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 661e42fa3a9..ea5e4f67e9e 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -2901,7 +2901,7 @@ ReindexRelationConcurrently(Oid relationOid, int options)
 
 				/*
 				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuild it would not be possible to drop it.
+				 * if rebuilt it would not be possible to drop it.
 				 */
 				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
 					!get_index_isvalid(relationOid))