diff --git a/weed/filer/s3iam_conf_test.go b/weed/filer/s3iam_conf_test.go
index 88f446151..65cc49840 100644
--- a/weed/filer/s3iam_conf_test.go
+++ b/weed/filer/s3iam_conf_test.go
@@ -2,7 +2,7 @@ package filer
 
 import (
 	"bytes"
-	"github.com/chrislusf/seaweedfs/weed/s3api"
+	. "github.com/chrislusf/seaweedfs/weed/s3api/s3_constants"
 	"testing"
 
 	"github.com/chrislusf/seaweedfs/weed/pb/iam_pb"
@@ -22,9 +22,9 @@ func TestS3Conf(t *testing.T) {
 					},
 				},
 				Actions: []string{
-					s3api.ACTION_ADMIN,
-					s3api.ACTION_READ,
-					s3api.ACTION_WRITE,
+					ACTION_ADMIN,
+					ACTION_READ,
+					ACTION_WRITE,
 				},
 			},
 			{
@@ -36,9 +36,9 @@ func TestS3Conf(t *testing.T) {
 					},
 				},
 				Actions: []string{
-					s3api.ACTION_READ,
-					s3api.ACTION_TAGGING,
-					s3api.ACTION_LIST,
+					ACTION_READ,
+					ACTION_TAGGING,
+					ACTION_LIST,
 				},
 			},
 		},
diff --git a/weed/s3api/auth_credentials.go b/weed/s3api/auth_credentials.go
index 452557619..83f5269b7 100644
--- a/weed/s3api/auth_credentials.go
+++ b/weed/s3api/auth_credentials.go
@@ -14,14 +14,6 @@ import (
 
 type Action string
 
-const (
-	ACTION_READ    = "Read"
-	ACTION_WRITE   = "Write"
-	ACTION_ADMIN   = "Admin"
-	ACTION_TAGGING = "Tagging"
-	ACTION_LIST    = "List"
-)
-
 type Iam interface {
 	Check(f http.HandlerFunc, actions ...Action) http.HandlerFunc
 }
diff --git a/weed/s3api/auth_credentials_test.go b/weed/s3api/auth_credentials_test.go
index c6f76560c..0383ddbcd 100644
--- a/weed/s3api/auth_credentials_test.go
+++ b/weed/s3api/auth_credentials_test.go
@@ -1,6 +1,7 @@
 package s3api
 
 import (
+	. "github.com/chrislusf/seaweedfs/weed/s3api/s3_constants"
 	"testing"
 
 	"github.com/golang/protobuf/jsonpb"
diff --git a/weed/s3api/s3_constants/s3_actions.go b/weed/s3api/s3_constants/s3_actions.go
new file mode 100644
index 000000000..f6056ef78
--- /dev/null
+++ b/weed/s3api/s3_constants/s3_actions.go
@@ -0,0 +1,10 @@
+package s3_constants
+
+const (
+	ACTION_READ    = "Read"
+	ACTION_WRITE   = "Write"
+	ACTION_ADMIN   = "Admin"
+	ACTION_TAGGING = "Tagging"
+	ACTION_LIST    = "List"
+)
+
diff --git a/weed/s3api/s3api_server.go b/weed/s3api/s3api_server.go
index 18f8b563f..93e2bb575 100644
--- a/weed/s3api/s3api_server.go
+++ b/weed/s3api/s3api_server.go
@@ -3,6 +3,7 @@ package s3api
 import (
 	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/filer"
+	. "github.com/chrislusf/seaweedfs/weed/s3api/s3_constants"
 	"net/http"
 	"strings"
 	"time"