diff --git a/tools/cooja/java/se/sics/cooja/plugins/TimeLine.java b/tools/cooja/java/se/sics/cooja/plugins/TimeLine.java
index d1349d1b9..730af29d7 100644
--- a/tools/cooja/java/se/sics/cooja/plugins/TimeLine.java
+++ b/tools/cooja/java/se/sics/cooja/plugins/TimeLine.java
@@ -358,8 +358,11 @@ public class TimeLine extends VisPlugin implements HasQuickHelp {
 
     /* Zoom in/out via keyboard*/
     getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_PLUS, KeyEvent.CTRL_DOWN_MASK), "zoomIn");
+    getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_EQUALS, KeyEvent.SHIFT_DOWN_MASK | KeyEvent.CTRL_DOWN_MASK), "zoomIn");
+    getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_ADD, KeyEvent.CTRL_DOWN_MASK), "zoomIn");
     getActionMap().put("zoomIn", zoomInAction);
     getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_MINUS, KeyEvent.CTRL_DOWN_MASK), "zoomOut");
+    getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_SUBTRACT, KeyEvent.CTRL_DOWN_MASK), "zoomOut");
     getActionMap().put("zoomOut", zoomOutAction);
 
     /*    getContentPane().add(splitPane);*/