diff --git a/modules/calc.py b/modules/calc.py
index 0e3c365..4e17342 100755
--- a/modules/calc.py
+++ b/modules/calc.py
@@ -25,8 +25,8 @@ def c(bot, trigger):
 			try:
 				value = numexpr.evaluate(expr, local_dict={}, global_dict={})
 				value = value.item()
-			except:
-				value = "Error. The expression was not understood."
+			except Exception as e:
+				value = type(e).__name__ + ': ' + str(e)
 			return_dict['value'] = value
 
 	with multiprocessing.Manager() as manager: