diff --git a/webapp/Makefile b/webapp/Makefile
index 88ee625a41..cd6dfbbadc 100644
--- a/webapp/Makefile
+++ b/webapp/Makefile
@@ -28,4 +28,4 @@ clean:
 
 	rm -rf dist
 	rm -rf node_modules
-	rm .npminstall
+	rm -f .npminstall