diff --git a/codan/org.eclipse.cdt.codan.core/src/org/eclipse/cdt/codan/internal/core/model/CodanMarkerProblemReporter.java b/codan/org.eclipse.cdt.codan.core/src/org/eclipse/cdt/codan/internal/core/model/CodanMarkerProblemReporter.java
index 06035a84e23..22349471784 100644
--- a/codan/org.eclipse.cdt.codan.core/src/org/eclipse/cdt/codan/internal/core/model/CodanMarkerProblemReporter.java
+++ b/codan/org.eclipse.cdt.codan.core/src/org/eclipse/cdt/codan/internal/core/model/CodanMarkerProblemReporter.java
@@ -47,7 +47,7 @@ public class CodanMarkerProblemReporter implements IProblemReporterPersistent {
 		IProblem problem = CheckersRegisry.getInstance().getResourceProfile(
 				file).findProblem(id);
 		if (problem == null)
-			throw new IllegalArgumentException("Id is not registered"); //$NON-NLS-1$
+			throw new IllegalArgumentException("Id is not registered:" + id); //$NON-NLS-1$
 		if (problem.isEnabled() == false)
 			return; // skip
 		int severity = problem.getSeverity().intValue();