diff --git a/application/src/main/java/org/thingsboard/server/service/telemetry/DefaultAlarmSubscriptionService.java b/application/src/main/java/org/thingsboard/server/service/telemetry/DefaultAlarmSubscriptionService.java
index 64d4630314..956dde8024 100644
--- a/application/src/main/java/org/thingsboard/server/service/telemetry/DefaultAlarmSubscriptionService.java
+++ b/application/src/main/java/org/thingsboard/server/service/telemetry/DefaultAlarmSubscriptionService.java
@@ -52,7 +52,6 @@ import org.thingsboard.server.service.subscription.TbSubscriptionUtils;
 
 import java.util.Collection;
 import java.util.Optional;
-import java.util.concurrent.ExecutionException;
 
 /**
  * Created by ashvayka on 27.03.18.