diff --git a/src/main/java/de/thm/arsnova/services/SessionService.java b/src/main/java/de/thm/arsnova/services/SessionService.java
index 50bb137ff03d35d0e8c006fb1c09945ec550889f..e9e6af9b97eb11a115f681484eebdfca9a5ecc57 100644
--- a/src/main/java/de/thm/arsnova/services/SessionService.java
+++ b/src/main/java/de/thm/arsnova/services/SessionService.java
@@ -45,8 +45,6 @@ import de.thm.arsnova.socket.ARSnovaSocketIOServer;
 @Service
 public class SessionService implements ISessionService {
 
-	private static final int DURATION_IN_MILLIS = 3 * 60 * 1000;
-
 	@Autowired
 	private IDatabaseDao databaseDao;