diff --git a/TTS/api.py b/TTS/api.py
index 7abc188e..311d3590 100644
--- a/TTS/api.py
+++ b/TTS/api.py
@@ -122,7 +122,8 @@ class TTS(nn.Module):
     def get_models_file_path():
         return Path(__file__).parent / ".models.json"
 
-    def list_models(self):
+    @staticmethod
+    def list_models():
         return ModelManager(models_file=TTS.get_models_file_path(), progress_bar=False, verbose=False)
 
     def download_model_by_name(self, model_name: str):