diff --git a/vdirsyncer/storage/dav.py b/vdirsyncer/storage/dav.py
index 125fa53..a8cf32b 100644
--- a/vdirsyncer/storage/dav.py
+++ b/vdirsyncer/storage/dav.py
@@ -281,7 +281,7 @@ class CalDiscover(Discover):
     </d:propfind>
     """
     _homeset_tag = '{%s}calendar-home-set' % _namespace
-    _well_known_uri = '/.well-known/caldav/'
+    _well_known_uri = '/.well-known/caldav'
 
 
 class CardDiscover(Discover):
@@ -295,7 +295,7 @@ class CardDiscover(Discover):
     </d:propfind>
     """
     _homeset_tag = '{%s}addressbook-home-set' % _namespace
-    _well_known_uri = '/.well-known/carddav/'
+    _well_known_uri = '/.well-known/carddav'
 
 
 class DavSession(object):
diff --git a/vdirsyncer/storage/google.py b/vdirsyncer/storage/google.py
index 47d8809..2b53e16 100644
--- a/vdirsyncer/storage/google.py
+++ b/vdirsyncer/storage/google.py
@@ -154,7 +154,7 @@ class GoogleContactsStorage(dav.CarddavStorage):
     class session_class(GoogleSession):
         # Apparently Google wants us to submit a PROPFIND to the well-known
         # URL, instead of looking for a redirect.
-        url = 'https://www.googleapis.com/.well-known/carddav/'
+        url = 'https://www.googleapis.com/.well-known/carddav'
         scope = ['https://www.googleapis.com/auth/carddav']
 
     storage_name = 'google_contacts'