Fix invalid syntax.
diff --git a/Lib/test/test_winsound.py b/Lib/test/test_winsound.py
index 422fd87..434e602 100644
--- a/Lib/test/test_winsound.py
+++ b/Lib/test/test_winsound.py
@@ -16,7 +16,7 @@
         key = winreg.OpenKeyEx(_winreg.HKEY_CURRENT_USER,
                 "AppEvents\Schemes\Apps\.Default\{0}\.Default".format(sound))
         value = winreg.EnumValue(key, 0)[1]
-        if value is not u"":
+        if value is not "":
             return True
         else:
             return False