diff --git a/konova/views/oauth.py b/konova/views/oauth.py
index 94dee2d..5748d48 100644
--- a/konova/views/oauth.py
+++ b/konova/views/oauth.py
@@ -94,11 +94,7 @@ class OAuthCallbackView(View):
         authentication_code = request.GET.get("code")
         oauth_acces_token_url = f"{SSO_SERVER_BASE}o/token/"
 
-        callback_url = request.build_absolute_uri(
-            reverse(
-                "oauth-callback"
-            )
-        )
+        callback_url = f'{BASE_URL}{reverse("oauth-callback")}'
 
         params = {
             "grant_type": "authorization_code",