diff --git a/Lib/decimal.py b/Lib/decimal.py
index cca0a44..8afeb4b 100644
--- a/Lib/decimal.py
+++ b/Lib/decimal.py
@@ -2350,7 +2350,7 @@
 
         # Errors should only be risked on copies of the context
         # self._ignored_flags = []
-        raise error, explanation
+        raise error(explanation)
 
     def _ignore_all_flags(self):
         """Ignore all flags, if they are raised"""