diff --git a/api/config.go b/api/config.go
index 20db480..5759f0c 100644
--- a/api/config.go
+++ b/api/config.go
@@ -56,6 +56,7 @@ func configParse() error {
 
 		"GITLAB_KEY":    "",
 		"GITLAB_SECRET": "",
+		"GITLAB_URL":    "https://gitlab.com",
 	}
 
 	if os.Getenv("COMMENTO_CONFIG_FILE") != "" {
diff --git a/api/oauth_gitlab.go b/api/oauth_gitlab.go
index 495ba58..33fb54a 100644
--- a/api/oauth_gitlab.go
+++ b/api/oauth_gitlab.go
@@ -35,6 +35,8 @@ func gitlabOauthConfigure() error {
 		},
 		Endpoint: gitlab.Endpoint,
 	}
+	gitlabConfig.Endpoint.AuthURL = os.Getenv("GITLAB_URL") + "/oauth/authorize"
+	gitlabConfig.Endpoint.TokenURL = os.Getenv("GITLAB_URL") + "/oauth/token"
 
 	gitlabConfigured = true
 
diff --git a/api/oauth_gitlab_callback.go b/api/oauth_gitlab_callback.go
index 112c0a6..5058290 100644
--- a/api/oauth_gitlab_callback.go
+++ b/api/oauth_gitlab_callback.go
@@ -6,6 +6,7 @@ import (
 	"golang.org/x/oauth2"
 	"io/ioutil"
 	"net/http"
+	"os"
 )
 
 func gitlabCallbackHandler(w http.ResponseWriter, r *http.Request) {
@@ -24,7 +25,7 @@ func gitlabCallbackHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	resp, err := http.Get("https://gitlab.com/api/v4/user?access_token=" + token.AccessToken)
+	resp, err := http.Get(os.Getenv("GITLAB_URL") + "/api/v4/user?access_token=" + token.AccessToken)
 	if err != nil {
 		fmt.Fprintf(w, "Error: %s", err.Error())
 		return