diff --git a/joj3_config_generator/main.py b/joj3_config_generator/main.py
index 10f7f44..ebd7b0f 100644
--- a/joj3_config_generator/main.py
+++ b/joj3_config_generator/main.py
@@ -95,9 +95,10 @@ def convert(
     app.pretty_exceptions_enable = False
     logger.info(f"Converting files in {root.absolute()}")
     for repo_toml_path in root.glob("**/repo.toml"):
-        fallback_toml_path = repo_toml_path.parent / "conf.toml"
-        if not fallback_toml_path.exists():
-            fallback_toml_path.write_text('name = "invalid commit"\n')
+        if not any(p != repo_toml_path for p in repo_toml_path.parent.glob("*.toml")):
+            fallback_toml_path = repo_toml_path.parent / "conf.toml"
+            if not fallback_toml_path.exists():
+                fallback_toml_path.write_text('name = "invalid commit"\n')
         for task_toml_path in repo_toml_path.parent.glob("**/*.toml"):
             if repo_toml_path == task_toml_path:
                 continue