diff --git a/lib/core/common.py b/lib/core/common.py
index 256b9eb17..00f3be6ef 100755
--- a/lib/core/common.py
+++ b/lib/core/common.py
@@ -2168,7 +2168,7 @@ def urldecode(value, encoding=None, unsafe="%%&=;+%s" % CUSTOM_INJECTION_MARK_CH
 
     return result
 
-def urlencode(value, safe="%&=", convall=False, limit=False, spaceplus=False):
+def urlencode(value, safe="%&=-_", convall=False, limit=False, spaceplus=False):
     """
     URL encodes given value