diff --git a/Lib/csv.py b/Lib/csv.py
index 79d72b6..d911175 100644
--- a/Lib/csv.py
+++ b/Lib/csv.py
@@ -48,7 +48,7 @@
     def _validate(self):
         try:
             _Dialect(self)
-        except TypeError, e:
+        except TypeError as e:
             # We do this for compatibility with py2.3
             raise Error(str(e))