diff --git a/cephfs/errors.go b/cephfs/errors.go
index 1462fc4..6cb0de1 100644
--- a/cephfs/errors.go
+++ b/cephfs/errors.go
@@ -24,7 +24,7 @@ func (e cephFSError) Error() string {
 	return fmt.Sprintf("cephfs: ret=%d, %s", errno, s)
 }
 
-func (e cephFSError) Errno() int {
+func (e cephFSError) ErrorCode() int {
 	return int(e)
 }
 
diff --git a/cephfs/errors_test.go b/cephfs/errors_test.go
index aa8ef72..7bdfd33 100644
--- a/cephfs/errors_test.go
+++ b/cephfs/errors_test.go
@@ -15,10 +15,10 @@ func TestCephFSError(t *testing.T) {
 	assert.Error(t, err)
 	assert.Equal(t, err.Error(), "cephfs: ret=5, Input/output error")
 
-	errno, ok := err.(interface{ Errno() int })
+	errno, ok := err.(interface{ ErrorCode() int })
 	assert.True(t, ok)
 	require.NotNil(t, errno)
-	assert.Equal(t, errno.Errno(), -5)
+	assert.Equal(t, errno.ErrorCode(), -5)
 
 	err = getError(345) // no such errno
 	assert.Error(t, err)