diff --git a/src/NewTools-Inspector-Extensions/ProtoObject.extension.st b/src/NewTools-Inspector-Extensions/ProtoObject.extension.st
index 2abe3dc12..ca65e878e 100644
--- a/src/NewTools-Inspector-Extensions/ProtoObject.extension.st
+++ b/src/NewTools-Inspector-Extensions/ProtoObject.extension.st
@@ -26,6 +26,12 @@ ProtoObject >> inspectionRaw [
 	^ StRawInspection on: self
 ]
 
+{ #category : #'*NewTools-Inspector-Extensions' }
+ProtoObject >> inspectorIcon [
+
+	^ nil
+]
+
 { #category : #'*NewTools-Inspector-Extensions' }
 ProtoObject >> inspectorNodes [ 
 	"Answer a list of attributes as nodes"