kc3-lang/kc3

diff --git a/lib/kc3/0.1/url.kc3 b/lib/kc3/0.1/url.kc3
index 7259535..e35e798 100644
--- a/lib/kc3/0.1/url.kc3
+++ b/lib/kc3/0.1/url.kc3
@@ -17,6 +17,6 @@ defmodule URL do
 
   def escape = cfn Str "url_escape" (Str, Result)
 
-  def escapes = "%#<>'\\\""
+  def escapes = "%+#<>'\\\""
 
 end