diff --git a/tools/cooja/java/se/sics/cooja/GUI.java b/tools/cooja/java/se/sics/cooja/GUI.java
index a7c5dd166..a01294043 100644
--- a/tools/cooja/java/se/sics/cooja/GUI.java
+++ b/tools/cooja/java/se/sics/cooja/GUI.java
@@ -2067,7 +2067,7 @@ public class GUI extends Observable {
 
     // Set frame title
     if (frame != null) {
-      frame.setTitle(sim.getTitle() + " - The Contiki Simulation Environment");
+      frame.setTitle(sim.getTitle() + " - " + WINDOW_TITLE);
     }
 
     // Open standard plugins (if none opened already)