diff --git a/dist/rules/postgresql/postgres-exporter.yml b/dist/rules/postgresql/postgres-exporter.yml
index 0b8cd0a..b3999f8 100644
--- a/dist/rules/postgresql/postgres-exporter.yml
+++ b/dist/rules/postgresql/postgres-exporter.yml
@@ -77,7 +77,7 @@ groups:
         description: "PostgreSQL has dead-locks\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
 
     - alert: PostgresqlHighRollbackRate
-      expr: 'rate(pg_stat_database_xact_rollback{datname!~"template.*"}[3m]) / rate(pg_stat_database_xact_commit{datname!~"template.*"}[3m]) > 0.02'
+      expr: 'sum by (namespace,datname) ((rate(pg_stat_database_xact_rollback{datname!~"template.*|postgres",datid!="0"}[3m])) / ((rate(pg_stat_database_xact_rollback{datname!~"template.*|postgres",datid!="0"}[3m])) + (rate(pg_stat_database_xact_commit{datname!~"template.*|postgres",datid!="0"}[3m])))) > 0.02'
       for: 0m
       labels:
         severity: warning