diff --git a/webdav3/client.py b/webdav3/client.py
index 42a510c..3d29207 100644
--- a/webdav3/client.py
+++ b/webdav3/client.py
@@ -691,6 +691,7 @@ class Client(object):
 
         urn = Urn(remote_directory, directory=True)
 
+        ## here we check for the current directory
         if not self.is_dir(urn.path()):
             raise OptionNotValid(name="remote_path", value=remote_directory)
 
@@ -699,6 +700,7 @@ class Client(object):
 
         local_resource_names = listdir(local_directory)
 
+        ## here we get all files and directories in the current directory
         paths = self.list(urn.path())
         expression = "{begin}{end}".format(begin="^", end=remote_directory)
         remote_resource_names = prune(paths, expression)
@@ -711,9 +713,12 @@ class Client(object):
 
             remote_urn = Urn(remote_path)
 
-            if self.is_dir(remote_urn.path()):
+            ## if the string ends with an "/" it *must* be a directory
+            ## no need to check it here
+            if remote_urn.path().endswith("/"):
                 if not os.path.exists(local_path):
                     os.mkdir(local_path)
+                ## nevertheless, since we pull the directory, it will be checked up there
                 self.pull(remote_directory=remote_path, local_directory=local_path)
             else:
                 if remote_resource_name in local_resource_names: