diff --git a/frontend/Makefile b/frontend/Makefile
index 4bbefe6..b32bdbf 100644
--- a/frontend/Makefile
+++ b/frontend/Makefile
@@ -21,7 +21,7 @@ endif
 
 serve:
 ifeq ($(DEBUG),1)
-	elm-go src/Main.elm --dir=../public --start-page=index.html -- --output=../public/elm.min.js
+	elm-go src/Main.elm --port=8000 --dir=../public --start-page=index.html -- --output=../public/elm.min.js
 else ifeq ($(RELEASE),1)
 	$(error Cannot use serve target with RELEASE=1)
 endif