diff --git a/src/bin/pg_upgrade/check.c b/src/bin/pg_upgrade/check.c
index 64024e3b9e..5de13bdfe0 100644
--- a/src/bin/pg_upgrade/check.c
+++ b/src/bin/pg_upgrade/check.c
@@ -1133,7 +1133,7 @@ check_for_composite_data_type_usage(ClusterInfo *cluster)
 	if (found)
 	{
 		pg_log(PG_REPORT, "fatal");
-		pg_fatal("Your installation contains system-defined composite type(s) in user tables.\n"
+		pg_fatal("Your installation contains system-defined composite types in user tables.\n"
 				 "These type OIDs are not stable across PostgreSQL versions,\n"
 				 "so this cluster cannot currently be upgraded.  You can\n"
 				 "drop the problem columns and restart the upgrade.\n"