diff --git a/gitdb/db/loose.py b/gitdb/db/loose.py
@@ -8,7 +8,6 @@
    ObjectDBW
)

-
from gitdb.exc import (
    BadObject,
    AmbiguousObjectName
@@ -33,10 +32,8 @@
    bin_to_hex,
    exists,
    chmod,
-    isdir,
    isfile,
    remove,
-    mkdir,
    rename,
    dirname,
    basename,
@@ -222,8 +219,7 @@ def store(self, istream):
        if tmp_path:
            obj_path = self.db_path(self.object_path(hexsha))
            obj_dir = dirname(obj_path)
-            if not isdir(obj_dir):
-                mkdir(obj_dir)
            # END handle destination directory
            # rename onto existing doesn't work on NTFS
            if isfile(obj_path):