diff --git a/packages/server/src/repowise/server/mcp_server/tool_refactoring.py b/packages/server/src/repowise/server/mcp_server/tool_refactoring.py
index e8290a7c7..7979fa6ee 100644
--- a/packages/server/src/repowise/server/mcp_server/tool_refactoring.py
+++ b/packages/server/src/repowise/server/mcp_server/tool_refactoring.py
@@ -96,7 +96,7 @@ async def generate_refactoring_code(suggestion_id: str, repo: str | None = None)
         }
 
     async with get_session(ctx.session_factory) as session:
-        repository = await _get_repo(session, repo)
+        repository = await _get_repo(session)
         row = await get_refactoring_suggestion(session, repository.id, suggestion_id)
         if row is None:
             return {
diff --git a/tests/unit/server/test_mcp_workspace.py b/tests/unit/server/test_mcp_workspace.py
index a084c3f68..ee61cbc10 100644
--- a/tests/unit/server/test_mcp_workspace.py
+++ b/tests/unit/server/test_mcp_workspace.py
@@ -301,6 +301,15 @@ async def test_get_health_resolves_alias_different_from_repo_name(workspace_mcp)
     assert result["kpis"]["file_count"] == 0
 
 
+@pytest.mark.asyncio
+async def test_generate_refactoring_code_resolves_alias_different_from_repo_name(workspace_mcp):
+    from repowise.server.mcp_server import generate_refactoring_code
+
+    result = await generate_refactoring_code(suggestion_id="does-not-exist", repo="frontend")
+
+    assert result["error"] is not None
+
+
 # ---------------------------------------------------------------------------
 # get_overview — workspace footer
 # ---------------------------------------------------------------------------