diff --git a/Makefile b/Makefile
index 86d419f35..c34354172 100644
--- a/Makefile
+++ b/Makefile
@@ -87,8 +87,8 @@ endif
 .PHONY: npm
 npm:
 	$(npm) install
-	sed -i 's/L\.Browser\.touch/L.Browser.mobile/g' node_modules/leaflet.elevation/dist/Leaflet.Elevation-0.0.2.min.js
-
+	sed -i.bak 's/L\.Browser\.touch/L.Browser.mobile/g' node_modules/leaflet.elevation/dist/Leaflet.Elevation-0.0.2.min.js && rm node_modules/leaflet.elevation/dist/Leaflet.Elevation-0.0.2.min.js.bak
+	
 # Removes the appstore build
 .PHONY: clean
 clean: