diff --git a/Dockerfile b/Dockerfile
index dafa369..fbfd507 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ RUN useradd wide && useradd runner
 ENV GOROOT /usr/src/go
 ENV GOPATH /wide/gogogo
 
-RUN go get -v go get golang.org/x/tools/cmd/vet github.com/88250/ide_stub github.com/nsf/gocode github.com/bradfitz/goimports
+RUN go get -v golang.org/x/tools/cmd/vet github.com/88250/ide_stub github.com/nsf/gocode github.com/bradfitz/goimports
 
 WORKDIR /wide/gogogo/src/github.com/b3log/wide
 RUN go get -v && go build -v