diff --git a/Makefile b/Makefile
index 4d8036b8a..26de91c00 100644
--- a/Makefile
+++ b/Makefile
@@ -134,7 +134,7 @@ well-known/.well-known:
 
 .PHONY: clean
 clean:
-	rm -rf node_modules assets/icons well-known
+	rm -rf node_modules .npm assets/icons well-known
 	rm -rf .stack-work .stack-work-build .stack-work-run .stack-work-test .stack-work-doc
 	rm -rf bin/