diff --git a/debug/org.eclipse.cdt.debug.ui/ChangeLog b/debug/org.eclipse.cdt.debug.ui/ChangeLog
index 24a6f2884a9..dba13d1351d 100644
--- a/debug/org.eclipse.cdt.debug.ui/ChangeLog
+++ b/debug/org.eclipse.cdt.debug.ui/ChangeLog
@@ -1,3 +1,7 @@
+2006-08-31 Mikhail Khodjaiants
+	Bug 155826: Duplicate addListener call in Signals view.
+	* SignalsView.java
+
 2006-08-14 Mikhail Khodjaiants
 	Bug 136896: View variables in binary format.
 	Applied modified patch from Mark Mitchell (CodeSourcery).
diff --git a/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/signals/SignalsView.java b/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/signals/SignalsView.java
index 66ca11094af..b7b9e505633 100644
--- a/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/signals/SignalsView.java
+++ b/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/signals/SignalsView.java
@@ -95,14 +95,14 @@ public class SignalsView extends AbstractDebugEventHandlerView
 	 * @see org.eclipse.debug.ui.AbstractDebugView#createViewer(org.eclipse.swt.widgets.Composite)
 	 */
 	protected Viewer createViewer( Composite parent ) {
-		CDebugUIPlugin.getDefault().getPreferenceStore().addPropertyChangeListener( this );
-		
+
 		// add tree viewer
 		final SignalsViewer vv = new SignalsViewer( parent, SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL );
 		vv.setContentProvider( createContentProvider() );
 		vv.setLabelProvider( new SignalsViewLabelProvider() );
 		vv.setUseHashlookup( true );
 
+		// listen to preference changes
 		CDebugUIPlugin.getDefault().getPreferenceStore().addPropertyChangeListener( this );
 
 		// listen to selection in debug view