diff --git a/src/main/java/com/nhn/pinpoint/web/scheduler/DefaultAlarmScheduler.java b/src/main/java/com/nhn/pinpoint/web/scheduler/DefaultAlarmScheduler.java
index 4b4bb5f2e..bb02e63ba 100644
--- a/src/main/java/com/nhn/pinpoint/web/scheduler/DefaultAlarmScheduler.java
+++ b/src/main/java/com/nhn/pinpoint/web/scheduler/DefaultAlarmScheduler.java
@@ -101,6 +101,7 @@ public class DefaultAlarmScheduler implements AlarmScheduler {
 		synchronized (this) {
 			if (this.repository == null) {
 				logger.warn("{}'s repository is null. this job will be skipped.", this.getClass().getName());
+				return;
 			}
 			
 			int totalJobCount = this.repository.getTotalJobCount();