diff --git a/Makefile b/Makefile
index e5b775a75..250b21e22 100644
--- a/Makefile
+++ b/Makefile
@@ -113,8 +113,13 @@ frontend-%: node_modules
 node_modules: package.json
 	npm ci --cache .npm --prefer-offline
 
-well-known: node_modules
+well-known: node_modules well-known/.well-known
 	npx webpack --progress
+# mark well-known directory as clean after successful webpack run:
+	touch well-known/.well-known
+
+well-known/.well-known:
+# no-op target
 
 # TODO: remove, as no npmrc is needed anymore 
 # .npmrc: