diff --git a/org.hl7.fhir.publisher.core/src/main/java/org/hl7/fhir/igtools/publisher/ValidationServices.java b/org.hl7.fhir.publisher.core/src/main/java/org/hl7/fhir/igtools/publisher/ValidationServices.java
index 6602577f..be7a9d87 100644
--- a/org.hl7.fhir.publisher.core/src/main/java/org/hl7/fhir/igtools/publisher/ValidationServices.java
+++ b/org.hl7.fhir.publisher.core/src/main/java/org/hl7/fhir/igtools/publisher/ValidationServices.java
@@ -490,6 +490,6 @@ public IValidationPolicyAdvisor getPolicyAdvisor() {
 
   @Override
   public IValidationPolicyAdvisor setPolicyAdvisor(IValidationPolicyAdvisor policyAdvisor) {
-    throw new Error("Not supported");
+    throw new Error("Not supported"); // !
   }
 }