diff --git a/internal/collector/postgres_database.go b/internal/collector/postgres_database.go
index b36080c..b2c17a4 100644
--- a/internal/collector/postgres_database.go
+++ b/internal/collector/postgres_database.go
@@ -51,7 +51,7 @@ 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(NULLIF(datminmxid, 1), datfrozenxid)))) 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"
 )