diff --git a/guestbook-go/Dockerfile b/guestbook-go/Dockerfile
index 239a29cc..8e4e61db 100644
--- a/guestbook-go/Dockerfile
+++ b/guestbook-go/Dockerfile
@@ -17,14 +17,14 @@ RUN go get github.com/codegangsta/negroni \
            github.com/gorilla/mux \
            github.com/xyproto/simpleredis/v2
 WORKDIR /app
-ADD .guestbook-go/main.go .
+ADD ./guestbook-go/main.go .
 RUN CGO_ENABLED=0 GOOS=linux go build -o main .
 
 FROM scratch
 WORKDIR /app
 COPY --from=0 /app/main .
-COPY .guestbook-go/public/index.html public/index.html
-COPY .guestbook-go/public/script.js public/script.js
-COPY .guestbook-go/public/style.css public/style.css
+COPY ./guestbook-go/public/index.html public/index.html
+COPY ./guestbook-go/public/script.js public/script.js
+COPY ./guestbook-go/public/style.css public/style.css
 CMD ["/app/main"]
 EXPOSE 3000