diff --git a/codes/Makefile b/codes/Makefile
index c2e46d3..13ebef2 100644
--- a/codes/Makefile
+++ b/codes/Makefile
@@ -13,6 +13,11 @@ proto:
 build:
 	go build -o codes *.go
 
+.PHONY: docs
+docs:
+        protoc --openapi_out=. --proto_path=. --micro_out=. --go_out=:. proto/codes.proto
+        @redoc-cli bundle api-codes.json
+
 .PHONY: test
 test:
 	go test -v ./... -cover