diff --git a/src/main/java/com/commafeed/frontend/CommaFeedSessionServices.java b/src/main/java/com/commafeed/frontend/CommaFeedSessionServices.java
index 4a8f8c58..62bcbb59 100644
--- a/src/main/java/com/commafeed/frontend/CommaFeedSessionServices.java
+++ b/src/main/java/com/commafeed/frontend/CommaFeedSessionServices.java
@@ -10,6 +10,8 @@ import com.commafeed.backend.services.UserService;
 // extend Component in order to benefit from injection 
 public class CommaFeedSessionServices extends Component {
 
+	private static final long serialVersionUID = 1L;
+
 	@Inject
 	UserService userService;