diff --git a/inception-app-webapp/src/main/resources/log4j2.xml b/inception-app-webapp/src/main/resources/log4j2.xml
index 0cb755f45e5..79baba8915a 100644
--- a/inception-app-webapp/src/main/resources/log4j2.xml
+++ b/inception-app-webapp/src/main/resources/log4j2.xml
@@ -47,6 +47,8 @@
     <Logger name="org.springframework.beans.factory.config.PropertiesFactoryBean" level="ERROR"/>
     <!-- Avoid warning on cookies with an invalid expiration date - cf. issue #739 -->
     <Logger name="org.apache.http.client.protocol.ResponseProcessCookies" level="ERROR"/>
+    <!-- Avoid error when user leaves websocket-enabled page -->
+    <Logger name="org.apache.wicket.protocol.ws.javax.WicketEndpoint" level="FATAL"/>
     <Root level="warn">
       <AppenderRef ref="ConsoleAppender" />
       <AppenderRef ref="ProjectAppender" />
diff --git a/inception-recommendation/src/main/java/de/tudarmstadt/ukp/inception/recommendation/sidebar/LearningCurveChartPanel.java b/inception-recommendation/src/main/java/de/tudarmstadt/ukp/inception/recommendation/sidebar/LearningCurveChartPanel.java
index b10be6c02ae..2a7aee1ce1d 100644
--- a/inception-recommendation/src/main/java/de/tudarmstadt/ukp/inception/recommendation/sidebar/LearningCurveChartPanel.java
+++ b/inception-recommendation/src/main/java/de/tudarmstadt/ukp/inception/recommendation/sidebar/LearningCurveChartPanel.java
@@ -39,18 +39,20 @@
 import org.apache.wicket.markup.html.panel.Panel;
 import org.apache.wicket.model.IModel;
 import org.apache.wicket.model.LoadableDetachableModel;
+import org.apache.wicket.protocol.ws.api.WebSocketBehavior;
+import org.apache.wicket.protocol.ws.api.WebSocketRequestHandler;
+import org.apache.wicket.protocol.ws.api.message.ConnectedMessage;
+import org.apache.wicket.protocol.ws.api.message.IWebSocketPushMessage;
 import org.apache.wicket.spring.injection.annot.SpringBean;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.wicketstuff.event.annotation.OnEvent;
-
 import de.tudarmstadt.ukp.clarin.webanno.api.annotation.model.AnnotatorState;
-import de.tudarmstadt.ukp.clarin.webanno.api.annotation.rendering.event.RenderAnnotationsEvent;
 import de.tudarmstadt.ukp.inception.log.EventRepository;
 import de.tudarmstadt.ukp.inception.log.model.LoggedEvent;
 import de.tudarmstadt.ukp.inception.recommendation.api.RecommendationService;
 import de.tudarmstadt.ukp.inception.recommendation.api.model.Recommender;
 import de.tudarmstadt.ukp.inception.recommendation.chart.ChartPanel;
+import de.tudarmstadt.ukp.inception.recommendation.event.RecommenderEvaluationResultEvent;
 import de.tudarmstadt.ukp.inception.recommendation.log.RecommenderEvaluationResultEventAdapter.Details;
 import de.tudarmstadt.ukp.inception.recommendation.model.LearningCurve;
 import de.tudarmstadt.ukp.inception.recommendation.model.RecommenderEvaluationScoreMetricEnum;
@@ -93,6 +95,28 @@ public LearningCurveChartPanel(String aId, IModel<AnnotatorState> aModel)
         add(dropDownPanel);
         
         selectedMetric = RecommenderEvaluationScoreMetricEnum.Accuracy;
+        
+        add(new WebSocketBehavior() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            protected void onConnect(ConnectedMessage aMessage)
+            {
+                super.onConnect(aMessage);
+                LOG.debug("User with sessionID {} connected.",
+                        aMessage.getSessionId());
+            }
+
+            @Override
+            protected void onPush(WebSocketRequestHandler aHandler, IWebSocketPushMessage aMessage)
+            {
+                if (aMessage instanceof RecommenderEvaluationResultEvent) {
+                    LOG.debug("Received event: {}", aMessage.toString());
+                    aHandler.add(LearningCurveChartPanel.this);
+                }
+            }
+        });
     }
     
 
@@ -115,14 +139,6 @@ public void onEvent(IEvent<?> event)
         }
     }
 
-    @OnEvent
-    public void onRenderAnnotations(RenderAnnotationsEvent aEvent)
-    {
-        LOG.trace("rendered annotation event");
-
-        aEvent.getRequestHandler().add(this);
-    }
-    
     /**
      * Returns chart data wrapped in LearningCurve
      */