diff --git a/Lib/unittest.py b/Lib/unittest.py
index b34b389..9163e84 100644
--- a/Lib/unittest.py
+++ b/Lib/unittest.py
@@ -783,7 +783,7 @@
             else:
                 self.testNames = (self.defaultTest,)
             self.createTests()
-        except getopt.error, msg:
+        except getopt.error as msg:
             self.usageExit(msg)
 
     def createTests(self):