diff --git a/lib/core/convert.py b/lib/core/convert.py
index f34e37c5a..16f3e6c65 100644
--- a/lib/core/convert.py
+++ b/lib/core/convert.py
@@ -80,7 +80,7 @@ def urldecode(value, encoding=None):
 
     return result
 
-def urlencode(value, safe=":/?%&=", convall=False):
+def urlencode(value, safe=":/?%&=|()", convall=False):
     if conf.direct or "POSTxml" in conf.paramDict:
         return value