diff --git a/server/config/settings/base.py b/server/config/settings/base.py
index 68710668..e1500867 100644
--- a/server/config/settings/base.py
+++ b/server/config/settings/base.py
@@ -639,7 +639,7 @@ OAUTH_SIGNIN_REDIRECT_URI = env(
     "OAUTH_SIGNIN_REDIRECT_URI", default="http://localhost:8000/sso/callback"
 )
 
-OAUTH_LOGOUT_REDIRECT_URI = env("OAUTH_LOGOUT_REDIRECT_URI", default="")
+OAUTH_LOGOUT_REDIRECT_URI = env("OAUTH_LOGOUT_REDIRECT_URI", default="/")
 
 OAUTH_SIGNIN_URL = env("OAUTH_SIGNIN_URL", default="")
 OAUTH_SIGNIN_REALM = env("OAUTH_SIGNIN_REALM", default="vbv")
diff --git a/server/vbv_lernwelt/sso/views.py b/server/vbv_lernwelt/sso/views.py
index bae5040b..686a5c04 100644
--- a/server/vbv_lernwelt/sso/views.py
+++ b/server/vbv_lernwelt/sso/views.py
@@ -143,7 +143,8 @@ def logout(request):
     id_token = user_data.get("id_token", "")
     if not id_token:
         logger.debug("SSO Logout", extra={"mode": "id_token_not_set"})
-        return redirect(f"{redirect_uri}&client_id=iterativ")
+        url_param_symbol = "&" if "?" in redirect_uri else "?"
+        return redirect(f"{redirect_uri}{url_param_symbol}client_id=iterativ")
 
     # Handle scenarios when SSO-related data is present or redirect_uri is not set
     if not redirect_uri: