diff --git a/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/registers/RegistersView.java b/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/registers/RegistersView.java
index ee0af1808a6..89b975d3afc 100644
--- a/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/registers/RegistersView.java
+++ b/debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/registers/RegistersView.java
@@ -216,6 +216,11 @@ public class RegistersView extends AbstractDebugEventHandlerView
 			}
 		}
 
+		if ( getViewer() == null )
+		{
+			return;
+		}
+
 		Object current = getViewer().getInput();
 		if ( current == null && frame == null )
 		{