diff --git a/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/AbstractMspMoteType.java b/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/AbstractMspMoteType.java
index 2a6e68361..39fee19bd 100644
--- a/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/AbstractMspMoteType.java
+++ b/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/AbstractMspMoteType.java
@@ -63,7 +63,6 @@ public abstract class AbstractMspMoteType extends MspMoteType {
     @Override
     public boolean configureAndInit(Container parentContainer, Simulation simulation, boolean visAvailable)
             throws MoteTypeCreationException {
-        this.simulation = simulation;
 
         /* SPECIAL CASE: Cooja started in applet.
          * Use preconfigured Contiki firmware */