diff --git a/utils/robots_perso.py b/utils/robots_perso.py
index 1f8212d7..2d74b90e 100755
--- a/utils/robots_perso.py
+++ b/utils/robots_perso.py
@@ -19,8 +19,11 @@ def add_robots(user, robots):
             for user_agent in entry.useragents:
                 for rule in entry.rulelines:
                     what = "Allow" if rule.allowance else "Disallow"
-                    robots["User-agent: %s" % user_agent][what].append("/%s%s" %  (user, rule.path))
-                    robots["User-agent: %s" % user_agent][what].append("/~%s%s" %  (user, rule.path))
+                    path = rule.path
+                    if not path.startswith('/'):
+                        path = '/' + path
+                    robots["User-agent: %s" % user_agent][what].append("/%s%s" %  (user, path))
+                    robots["User-agent: %s" % user_agent][what].append("/~%s%s" %  (user, path))
 
 def write_robots(file, robots):
     for user_agent, whats in robots.items():