diff --git a/src/calc/errors.rs b/src/calc/errors.rs
index 9f537c2..9c52c05 100644
--- a/src/calc/errors.rs
+++ b/src/calc/errors.rs
@@ -39,8 +39,10 @@ impl fmt::Display for CalculatorError {
             CalculatorError::ParseError => write!(f, "Parse error"),
             CalculatorError::PrecisionTooHigh => write!(f, "Precision too high"),
             CalculatorError::SaveError(None) => write!(f, "Could not save"),
+            CalculatorError::SaveError(Some(ConfyError::SerializeTomlError(e))) => write!(f, "Save serialization error: {}", e),
             CalculatorError::SaveError(Some(e)) => write!(f, "Could not save: {}", e),
             CalculatorError::LoadError(None) => write!(f, "Could not load"),
+            CalculatorError::LoadError(Some(ConfyError::SerializeTomlError(e))) => write!(f, "Load serialization error: {}", e),
             CalculatorError::LoadError(Some(e)) => write!(f, "Could not load: {}", e),
         }
     }