diff --git a/service/alerting/elasticsearch/engine.go b/service/alerting/elasticsearch/engine.go
index 62d1c708..722cd1ee 100644
--- a/service/alerting/elasticsearch/engine.go
+++ b/service/alerting/elasticsearch/engine.go
@@ -495,7 +495,7 @@ func (engine *Engine) CheckCondition(rule *alerting.Rule)(*alerting.ConditionRes
 					"result": targetData.Data[dataKey][i][1],
 				})
 				if err != nil {
-					return nil, fmt.Errorf("evaluate rule [%s] error: %w", rule.ID, err)
+					return conditionResult, fmt.Errorf("evaluate rule [%s] error: %w", rule.ID, err)
 				}
 				if evaluateResult == true {
 					triggerCount += 1