diff --git a/manic/repository_svn.py b/manic/repository_svn.py
index fea5c10fe..922855d34 100644
--- a/manic/repository_svn.py
+++ b/manic/repository_svn.py
@@ -43,10 +43,15 @@ def __init__(self, component_name, repo, ignore_ancestry=False):
         """
         Repository.__init__(self, component_name, repo)
         self._ignore_ancestry = ignore_ancestry
+        if self._url.endswith('/'):
+            # there is already a '/' separator in the URL; no need to add another
+            url_sep = ''
+        else:
+            url_sep = '/'
         if self._branch:
-            self._url = self._url + '/' + self._branch
+            self._url = self._url + url_sep + self._branch
         elif self._tag:
-            self._url = self._url + '/' + self._tag
+            self._url = self._url + url_sep + self._tag
         else:
             msg = "DEV_ERROR in svn repository. Shouldn't be here!"
             fatal_error(msg)