diff --git a/routers/web/auth/oauth.go b/routers/web/auth/oauth.go
index a8a132bc9..64e9c5c20 100644
--- a/routers/web/auth/oauth.go
+++ b/routers/web/auth/oauth.go
@@ -822,7 +822,7 @@ func SignInOAuthCallback(ctx *context.Context) {
 	u, gothUser, err := oAuth2UserLoginCallback(authSource, ctx.Req, ctx.Resp)
 	if err != nil {
 		if user_model.IsErrUserProhibitLogin(err) {
-			uplerr := err.(*user_model.ErrUserProhibitLogin)
+			uplerr := err.(user_model.ErrUserProhibitLogin)
 			log.Info("Failed authentication attempt for %s from %s: %v", uplerr.Name, ctx.RemoteAddr(), err)
 			ctx.Data["Title"] = ctx.Tr("auth.prohibit_login")
 			ctx.HTML(http.StatusOK, "user/auth/prohibit_login")