diff --git a/scripts/garmin_auth.py b/scripts/garmin_auth.py
index dbd0e5f..7e2b691 100644
--- a/scripts/garmin_auth.py
+++ b/scripts/garmin_auth.py
@@ -44,14 +44,14 @@ except Exception as e:
 oauth1_adapter = TypeAdapter(OAuth1Token)
 oauth2_adapter = TypeAdapter(OAuth2Token)
 
+expires_at_ts = garth.client.oauth2_token.expires_at
 tokens = {
     "oauth1": oauth1_adapter.dump_python(garth.client.oauth1_token, mode='json'),
     "oauth2": oauth2_adapter.dump_python(garth.client.oauth2_token, mode='json'),
-    "expires_at": garth.client.oauth2_token.expires_at
+    "expires_at": datetime.fromtimestamp(expires_at_ts).isoformat()
 }
 
 print("\n--- Copy everything below this line ---")
 print(json.dumps(tokens, indent=2))
 print("--- Copy everything above this line ---")
-expires_dt = datetime.fromtimestamp(tokens['expires_at'])
-print(f"\nTokens expire: {expires_dt.isoformat()}")
+print(f"\nTokens expire: {tokens['expires_at']}")