diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/cpp/PDOMCPPBinding.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/cpp/PDOMCPPBinding.java
index 5d81c73ceb7..20048b41655 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/cpp/PDOMCPPBinding.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/cpp/PDOMCPPBinding.java
@@ -75,6 +75,6 @@ abstract class PDOMCPPBinding extends PDOMBinding implements ICPPBinding {
 	}
 
 	public boolean isGloballyQualified() throws DOMException {
-		throw new PDOMNotImplementedError();
+		throw new PDOMNotImplementedError("In " + getClass().getCanonicalName()); //$NON-NLS-1$
 	}	
 }