diff --git a/Makefile.example b/Makefile.example
index a4418eb..3aeec53 100644
--- a/Makefile.example
+++ b/Makefile.example
@@ -82,6 +82,7 @@ else
 endif
 
 vendor:
+	rm -rf output/{de,en,eo,fr}/vendor/
 	xargs -n 1 cp -pPR content/vendor/<<<"output/de output/en output/eo output/fr"
 
 stopserver: