diff --git a/janus_core/mlip_calculators.py b/janus_core/mlip_calculators.py
index 3eed650f..2ef4b3b1 100644
--- a/janus_core/mlip_calculators.py
+++ b/janus_core/mlip_calculators.py
@@ -16,7 +16,7 @@
 
 def choose_calculator(
     architecture: Literal[architectures] = "mace",
-    device: Literal[devices] = "cuda",
+    device: Literal[devices] = "cpu",
     **kwargs,
 ) -> Calculator:
     """
@@ -27,7 +27,7 @@ def choose_calculator(
     architecture : Literal[architectures], optional
         MLIP architecture. Default is "mace".
     device : Literal[devices]
-        Device to run calculator on. Default is "cuda".
+        Device to run calculator on. Default is "cpu".
     **kwargs
         Additional keyword arguments passed to the selected calculator.