diff --git a/src/backend/access/transam/twophase.c b/src/backend/access/transam/twophase.c
index a91ef0deeaf..064679b951d 100644
--- a/src/backend/access/transam/twophase.c
+++ b/src/backend/access/transam/twophase.c
@@ -965,7 +965,7 @@ AdjustToFullTransactionId(TransactionId xid)
 	epoch = EpochFromFullTransactionId(nextFullXid);
 	if (unlikely(xid > nextXid))
 	{
-		/* Wraparound occured, must be from a prev epoch. */
+		/* Wraparound occurred, must be from a prev epoch. */
 		Assert(epoch > 0);
 		epoch--;
 	}