diff --git a/navalplanner-gantt-zk/src/main/java/org/zkoss/ganttz/Planner.java b/navalplanner-gantt-zk/src/main/java/org/zkoss/ganttz/Planner.java
index 530f3c35d..e80595206 100644
--- a/navalplanner-gantt-zk/src/main/java/org/zkoss/ganttz/Planner.java
+++ b/navalplanner-gantt-zk/src/main/java/org/zkoss/ganttz/Planner.java
@@ -139,6 +139,7 @@ public class Planner extends XulElement {
             @Override
             public void dependenceRemoved(DependencyComponent dependencyComponent) {
                 diagramGraph.remove(dependencyComponent);
+                dependencyAdder.removeDependency(dependencyComponent.getDependency());
             }
         };
         getDependencyList().addDependencyRemovedListener(
@@ -169,6 +170,10 @@ public class Planner extends XulElement {
             adapter.addDependency(toDomainDependency(bean));
         }
 
+        public void removeDependency(Dependency bean){
+            adapter.removeDependency(toDomainDependency(bean));
+        }
+
         private DomainDependency<T> toDomainDependency(Dependency bean) {
             T source = mapper.findAssociatedDomainObject(bean.getSource());
             T destination = mapper.findAssociatedDomainObject(bean
diff --git a/navalplanner-gantt-zk/src/main/java/org/zkoss/ganttz/adapters/AutoAdapter.java b/navalplanner-gantt-zk/src/main/java/org/zkoss/ganttz/adapters/AutoAdapter.java
index cb58c1d32..fbc8420fb 100644
--- a/navalplanner-gantt-zk/src/main/java/org/zkoss/ganttz/adapters/AutoAdapter.java
+++ b/navalplanner-gantt-zk/src/main/java/org/zkoss/ganttz/adapters/AutoAdapter.java
@@ -34,4 +34,10 @@ public class AutoAdapter implements
         return true;
     }
 
+    @Override
+    public void removeDependency(
+            DomainDependency<ITaskFundamentalProperties> dependency) {
+        //do nothing
+    }
+
 }
diff --git a/navalplanner-gantt-zk/src/main/java/org/zkoss/ganttz/adapters/IAdapterToTaskFundamentalProperties.java b/navalplanner-gantt-zk/src/main/java/org/zkoss/ganttz/adapters/IAdapterToTaskFundamentalProperties.java
index 731eba811..8fcbe9fce 100644
--- a/navalplanner-gantt-zk/src/main/java/org/zkoss/ganttz/adapters/IAdapterToTaskFundamentalProperties.java
+++ b/navalplanner-gantt-zk/src/main/java/org/zkoss/ganttz/adapters/IAdapterToTaskFundamentalProperties.java
@@ -18,4 +18,6 @@ public interface IAdapterToTaskFundamentalProperties<T> {
 
     public void addDependency(DomainDependency<T> dependency);
 
+    public void removeDependency(DomainDependency<T> dependency);
+
 }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/TaskElementAdapter.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/TaskElementAdapter.java
index 09fba5e52..22d54c4e2 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/TaskElementAdapter.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/TaskElementAdapter.java
@@ -167,4 +167,9 @@ public class TaskElementAdapter implements ITaskElementAdapter {
     public boolean canAddDependency(DomainDependency<TaskElement> dependency) {
         return true;
     }
+
+    @Override
+    public void removeDependency(DomainDependency<TaskElement> dependency) {
+        System.out.println("removing dependency: "+dependency);
+    }
 }