diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c
index 491311fe790..046c0dc3b36 100644
--- a/src/bin/pg_dump/pg_dumpall.c
+++ b/src/bin/pg_dump/pg_dumpall.c
@@ -769,28 +769,31 @@ dumpRoles(PGconn *conn)
 				i_is_current_user;
 	int			i;
 
-	/* note: rolconfig is dumped later */
+	/*
+	 * Notes: rolconfig is dumped later, and pg_authid must be used for
+	 * extracting rolcomment regardless of role_catalog.
+	 */
 	if (server_version >= 90600)
 		printfPQExpBuffer(buf,
 						  "SELECT oid, rolname, rolsuper, rolinherit, "
 						  "rolcreaterole, rolcreatedb, "
 						  "rolcanlogin, rolconnlimit, rolpassword, "
 						  "rolvaliduntil, rolreplication, rolbypassrls, "
-						  "pg_catalog.shobj_description(oid, '%s') as rolcomment, "
+						  "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, "
 						  "rolname = current_user AS is_current_user "
 						  "FROM %s "
 						  "WHERE rolname !~ '^pg_' "
-						  "ORDER BY 2", role_catalog, role_catalog);
+						  "ORDER BY 2", role_catalog);
 	else if (server_version >= 90500)
 		printfPQExpBuffer(buf,
 						  "SELECT oid, rolname, rolsuper, rolinherit, "
 						  "rolcreaterole, rolcreatedb, "
 						  "rolcanlogin, rolconnlimit, rolpassword, "
 						  "rolvaliduntil, rolreplication, rolbypassrls, "
-						  "pg_catalog.shobj_description(oid, '%s') as rolcomment, "
+						  "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, "
 						  "rolname = current_user AS is_current_user "
 						  "FROM %s "
-						  "ORDER BY 2", role_catalog, role_catalog);
+						  "ORDER BY 2", role_catalog);
 	else
 		printfPQExpBuffer(buf,
 						  "SELECT oid, rolname, rolsuper, rolinherit, "
@@ -798,10 +801,10 @@ dumpRoles(PGconn *conn)
 						  "rolcanlogin, rolconnlimit, rolpassword, "
 						  "rolvaliduntil, rolreplication, "
 						  "false as rolbypassrls, "
-						  "pg_catalog.shobj_description(oid, '%s') as rolcomment, "
+						  "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, "
 						  "rolname = current_user AS is_current_user "
 						  "FROM %s "
-						  "ORDER BY 2", role_catalog, role_catalog);
+						  "ORDER BY 2", role_catalog);
 
 	res = executeQuery(conn, buf->data);