diff --git a/docker/Dockerfile.go_build b/docker/Dockerfile.go_build
index 306ce3aa1..ea0a57769 100644
--- a/docker/Dockerfile.go_build
+++ b/docker/Dockerfile.go_build
@@ -1,7 +1,7 @@
 FROM frolvlad/alpine-glibc as builder
 RUN apk add git go g++
 RUN mkdir -p /go/src/github.com/chrislusf/
-RUN git clone https://github.com/chrislusf/seaweedfs /go/src/github.com/chrislusf/seaweedfs
+RUN git clone --depth 1 https://github.com/Dando-Real-ITA/seaweedfs -b develop /go/src/github.com/chrislusf/seaweedfs
 RUN cd /go/src/github.com/chrislusf/seaweedfs/weed && go install
 
 FROM alpine AS final
diff --git a/test/s3/multipart/aws_upload.go b/test/s3/multipart/aws_upload.go
index 6dd321daa..24a186625 100644
--- a/test/s3/multipart/aws_upload.go
+++ b/test/s3/multipart/aws_upload.go
@@ -6,7 +6,6 @@ import (
 	"bytes"
 	"flag"
 	"fmt"
-	"net/http"
 	"os"
 
 	"github.com/aws/aws-sdk-go/aws"
diff --git a/weed/command/filer_copy.go b/weed/command/filer_copy.go
index 9280c85aa..600f4028f 100644
--- a/weed/command/filer_copy.go
+++ b/weed/command/filer_copy.go
@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
-	"net/http"
 	"net/url"
 	"os"
 	"path/filepath"
diff --git a/weed/filesys/filehandle.go b/weed/filesys/filehandle.go
index c84c88e02..61ebbfc09 100644
--- a/weed/filesys/filehandle.go
+++ b/weed/filesys/filehandle.go
@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"io"
 	"math"
-	"net/http"
 	"os"
 	"sync"
 	"time"