diff --git a/pkg/ioutils/reader.go b/pkg/ioutil/reader.go
similarity index 98%
rename from pkg/ioutils/reader.go
rename to pkg/ioutil/reader.go
index e29d9616a..13748590b 100644
--- a/pkg/ioutils/reader.go
+++ b/pkg/ioutil/reader.go
@@ -14,7 +14,7 @@
    limitations under the License.
 */
 
-package ioutils
+package ioutil
 
 import "io"
 
diff --git a/pkg/ioutils/reader_test.go b/pkg/ioutil/reader_test.go
similarity index 98%
rename from pkg/ioutils/reader_test.go
rename to pkg/ioutil/reader_test.go
index d3d5a13e1..42f064801 100644
--- a/pkg/ioutils/reader_test.go
+++ b/pkg/ioutil/reader_test.go
@@ -14,7 +14,7 @@
    limitations under the License.
 */
 
-package ioutils
+package ioutil
 
 import (
 	"bytes"
diff --git a/rafthttp/http.go b/rafthttp/http.go
index 60afe83a8..b10967054 100644
--- a/rafthttp/http.go
+++ b/rafthttp/http.go
@@ -24,7 +24,7 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/coreos/etcd/pkg/ioutils"
+	pioutil "github.com/coreos/etcd/pkg/ioutil"
 	"github.com/coreos/etcd/pkg/types"
 	"github.com/coreos/etcd/raft/raftpb"
 
@@ -81,7 +81,7 @@ func (h *handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 	// Limit the data size that could be read from the request body, which ensures that read from
 	// connection will not time out accidentally due to possible block in underlying implementation.
-	limitedr := ioutils.NewLimitedBufferReader(r.Body, ConnReadLimitByte)
+	limitedr := pioutil.NewLimitedBufferReader(r.Body, ConnReadLimitByte)
 	b, err := ioutil.ReadAll(limitedr)
 	if err != nil {
 		log.Println("rafthttp: error reading raft message:", err)
diff --git a/test b/test
index 0e2ded2a0..7c16aa2aa 100755
--- a/test
+++ b/test
@@ -15,7 +15,7 @@ COVER=${COVER:-"-cover"}
 source ./build
 
 # Hack: gofmt ./ will recursively check the .git directory. So use *.go for gofmt.
-TESTABLE_AND_FORMATTABLE="client discovery error etcdctl/command etcdmain etcdserver etcdserver/etcdhttp etcdserver/etcdhttp/httptypes integration migrate pkg/fileutil pkg/flags pkg/idutil pkg/ioutils pkg/netutil pkg/pbutil pkg/types pkg/transport pkg/wait proxy raft rafthttp snap store wal"
+TESTABLE_AND_FORMATTABLE="client discovery error etcdctl/command etcdmain etcdserver etcdserver/etcdhttp etcdserver/etcdhttp/httptypes integration migrate pkg/fileutil pkg/flags pkg/idutil pkg/ioutil pkg/netutil pkg/pbutil pkg/types pkg/transport pkg/wait proxy raft rafthttp snap store wal"
 FORMATTABLE="$TESTABLE_AND_FORMATTABLE *.go etcdctl/"
 
 # user has not provided PKG override