diff --git a/Makefile b/Makefile
index f9784d5..11e565a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,9 @@
 EXEC = arimelody-web
 
-.PHONY: all
+.PHONY: $(EXEC)
 
-all:
-	go build -o $(EXEC)
+$(EXEC):
+	GOOS=linux GOARCH=amd64 go build -o $(EXEC)
 
 bundle: $(EXEC)
 	tar czf $(EXEC).tar.gz $(EXEC) admin/components/ admin/views/ admin/static/ views/ public/ schema-migration/