diff --git a/internal/collector/postgres_database.go b/internal/collector/postgres_database.go
index 21a4270..9f7ad63 100644
--- a/internal/collector/postgres_database.go
+++ b/internal/collector/postgres_database.go
@@ -37,7 +37,7 @@ const (
 		"FROM pg_stat_database WHERE datname IN (SELECT datname FROM pg_database WHERE datallowconn AND NOT datistemplate) " +
 		"OR datname IS NULL"
 
-	xidLimitQuery = "SELECT 'database' AS src, 2147483647 - greatest(max(age(datfrozenxid)), max(age(coalesce(nullif(datminmxid, 1), datfrozenxid)))) AS to_limit FROM pg_database " +
+	xidLimitQuery = "SELECT 'database' AS src, 2147483647 - greatest(max(age(datfrozenxid)), max(mxid_age(coalesce(datminmxid, 1)))) AS to_limit FROM pg_database " +
 		"UNION SELECT 'prepared_xacts' AS src, 2147483647 - coalesce(max(age(transaction)), 0) AS to_limit FROM pg_prepared_xacts " +
 		"UNION SELECT 'replication_slots' AS src, 2147483647 - greatest(coalesce(min(age(xmin)), 0), coalesce(min(age(catalog_xmin)), 0)) AS to_limit FROM pg_replication_slots"
 )