Enforce cleanup of buckminster installation
diff --git a/releng/org.eclipse.graphiti.releng/build.xml b/releng/org.eclipse.graphiti.releng/build.xml
index c3ba404..ed9522e 100644
--- a/releng/org.eclipse.graphiti.releng/build.xml
+++ b/releng/org.eclipse.graphiti.releng/build.xml
@@ -120,7 +120,7 @@
 		</copy>
 	</target>
 
-	<target name="clean.all">
+	<target name="clean.all" depends="init.clean.tools">
 		<echo message="Removing previous build" />
 		<delete dir="${buildsPath}" quiet="true" />
 	</target>