diff --git a/module/dal/control/src/main/java/org/openbase/bco/dal/control/layer/unit/AbstractDALUnitController.java b/module/dal/control/src/main/java/org/openbase/bco/dal/control/layer/unit/AbstractDALUnitController.java
index badad85fc5..7b337bce6c 100644
--- a/module/dal/control/src/main/java/org/openbase/bco/dal/control/layer/unit/AbstractDALUnitController.java
+++ b/module/dal/control/src/main/java/org/openbase/bco/dal/control/layer/unit/AbstractDALUnitController.java
@@ -116,7 +116,7 @@ public void activate() throws InterruptedException, CouldNotPerformException {
     }
 
     @Override
-    public synchronized void deactivate() throws InterruptedException, CouldNotPerformException {
+    public void deactivate() throws InterruptedException, CouldNotPerformException {
         super.deactivate();
 
         // deactivate data source