diff --git a/llmaz/main.py b/llmaz/main.py
index e709874b..f3e1a208 100644
--- a/llmaz/main.py
+++ b/llmaz/main.py
@@ -49,5 +49,5 @@
         raise EnvironmentError(f"unknown model source type {model_source_type}")
 
     Logger.info(
-        f"loading models from {model_source_type} takes {datetime.now() - start_time}s"
+        f"loading models from {model_source_type} takes {(datetime.now() - start_time).total_seconds()}s"
     )