diff --git a/remote/bitbucket/bitbucket.go b/remote/bitbucket/bitbucket.go
index a03f8ab71..a272fa884 100644
--- a/remote/bitbucket/bitbucket.go
+++ b/remote/bitbucket/bitbucket.go
@@ -1,7 +1,6 @@
 package bitbucket
 
 import (
-	"errors"
 	"fmt"
 	"net/http"
 	"net/url"
@@ -46,15 +45,11 @@ func (c *config) Login(w http.ResponseWriter, req *http.Request) (*model.User, e
 
 	// get the OAuth errors
 	if err := req.FormValue("error"); err != "" {
-		description := req.FormValue("error_description")
-		if description != "" {
-			err += " " + description
+		return nil, &remote.AuthError{
+			Err:         err,
+			Description: req.FormValue("error_description"),
+			URI:         req.FormValue("error_uri"),
 		}
-		uri := req.FormValue("error_uri")
-		if uri != "" {
-			err += " " + uri
-		}
-		return nil, errors.New(err)
 	}
 
 	// get the OAuth code
diff --git a/remote/errors.go b/remote/errors.go
new file mode 100644
index 000000000..0ad31e769
--- /dev/null
+++ b/remote/errors.go
@@ -0,0 +1,23 @@
+package remote
+
+// AuthError represents remote authentication error.
+type AuthError struct {
+	Err         string
+	Description string
+	URI         string
+}
+
+// Error implements error interface.
+func (ae *AuthError) Error() string {
+	err := ae.Err
+	if ae.Description != "" {
+		err += " " + ae.Description
+	}
+	if ae.URI != "" {
+		err += " " + ae.URI
+	}
+	return err
+}
+
+// check interface
+var _ error = new(AuthError)
diff --git a/remote/github/github.go b/remote/github/github.go
index fec783703..7b38278b1 100644
--- a/remote/github/github.go
+++ b/remote/github/github.go
@@ -2,7 +2,6 @@ package github
 
 import (
 	"crypto/tls"
-	"errors"
 	"fmt"
 	"net"
 	"net/http"
@@ -95,15 +94,11 @@ func (c *client) Login(res http.ResponseWriter, req *http.Request) (*model.User,
 
 	// get the OAuth errors
 	if err := req.FormValue("error"); err != "" {
-		description := req.FormValue("error_description")
-		if description != "" {
-			err += " " + description
+		return nil, &remote.AuthError{
+			Err:         err,
+			Description: req.FormValue("error_description"),
+			URI:         req.FormValue("error_uri"),
 		}
-		uri := req.FormValue("error_uri")
-		if uri != "" {
-			err += " " + uri
-		}
-		return nil, errors.New(err)
 	}
 
 	// get the OAuth code
diff --git a/remote/gitlab/gitlab.go b/remote/gitlab/gitlab.go
index c41993ef2..5c0192023 100644
--- a/remote/gitlab/gitlab.go
+++ b/remote/gitlab/gitlab.go
@@ -2,7 +2,6 @@ package gitlab
 
 import (
 	"crypto/tls"
-	"errors"
 	"fmt"
 	"io/ioutil"
 	"net"
@@ -118,15 +117,11 @@ func (g *Gitlab) Login(res http.ResponseWriter, req *http.Request) (*model.User,
 
 	// get the OAuth errors
 	if err := req.FormValue("error"); err != "" {
-		description := req.FormValue("error_description")
-		if description != "" {
-			err += " " + description
+		return nil, &remote.AuthError{
+			Err:         err,
+			Description: req.FormValue("error_description"),
+			URI:         req.FormValue("error_uri"),
 		}
-		uri := req.FormValue("error_uri")
-		if uri != "" {
-			err += " " + uri
-		}
-		return nil, errors.New(err)
 	}
 
 	// get the OAuth code