diff --git a/src/NewTools-Debugger-Tests/StDebugger.extension.st b/src/NewTools-Debugger-Tests/StDebugger.extension.st
index ff52c8b4a..6d1528b07 100644
--- a/src/NewTools-Debugger-Tests/StDebugger.extension.st
+++ b/src/NewTools-Debugger-Tests/StDebugger.extension.st
@@ -1,5 +1,12 @@
 Extension { #name : 'StDebugger' }
 
+{ #category : '*NewTools-Debugger-Tests' }
+StDebugger class >> activatedDebuggerExtensions [
+
+	^ self extensionToolsClasses select: [ :extension |
+		  extension showInDebugger ]
+]
+
 { #category : '*NewTools-Debugger-Tests' }
 StDebugger >> inspector [