diff --git a/openhands/integrations/gitlab/gitlab_service.py b/openhands/integrations/gitlab/gitlab_service.py
index 34916da404..a681f36279 100644
--- a/openhands/integrations/gitlab/gitlab_service.py
+++ b/openhands/integrations/gitlab/gitlab_service.py
@@ -56,8 +56,15 @@ class GitLabService(BaseGitService, GitService):
             self.token = token
 
         if base_domain:
-            self.BASE_URL = f'https://{base_domain}/api/v4'
-            self.GRAPHQL_URL = f'https://{base_domain}/api/graphql'
+            # Check if protocol is already included
+            if base_domain.startswith(('http://', 'https://')):
+                # Use the provided protocol
+                self.BASE_URL = f'{base_domain}/api/v4'
+                self.GRAPHQL_URL = f'{base_domain}/api/graphql'
+            else:
+                # Default to https if no protocol specified
+                self.BASE_URL = f'https://{base_domain}/api/v4'
+                self.GRAPHQL_URL = f'https://{base_domain}/api/graphql'
 
     @property
     def provider(self) -> str: