diff --git a/wfl/calculators/generic.py b/wfl/calculators/generic.py
index 544b8103..62b8843c 100644
--- a/wfl/calculators/generic.py
+++ b/wfl/calculators/generic.py
@@ -80,7 +80,7 @@ def _run_autopara_wrappable(atoms, calculator, properties=None, output_prefix='_
                 raise TypeError("calculators.generic.calculate got WFL_CALCULATOR_INITIALIZER, _ARGS, or _KWARGS "
                                 f"but constructor failed, most likely because calculator wasn't a tuple (TypeError) "
                                 "or original tuple had invalid element that wasn't overridden by `Atoms.info` entry. "
-                                f"Constructor exception was '{exc}'")
+                                f"Constructor exception was '{exc}'") from exc
 
         if calculator_use is None:
             raise ValueError(f"Failed to construct calculator, original attempt's exception was '{calculator_failure_message}'")