diff --git a/pina/trainer.py b/pina/trainer.py
index d1bd93d..41c4193 100644
--- a/pina/trainer.py
+++ b/pina/trainer.py
@@ -146,7 +146,7 @@ class Trainer(lightning.pytorch.Trainer):
         # logging
         self.logging_kwargs = {
             "logger": bool(
-                kwargs["logger"] is None or kwargs["logger"] is True
+                kwargs["logger"] is not None or kwargs["logger"] is True
             ),
             "sync_dist": bool(
                 len(self._accelerator_connector._parallel_devices) > 1