diff --git a/modoboa_webmail/lib/imapemail.py b/modoboa_webmail/lib/imapemail.py
index 37110e0..9e247f2 100644
--- a/modoboa_webmail/lib/imapemail.py
+++ b/modoboa_webmail/lib/imapemail.py
@@ -220,7 +220,7 @@ def _fetch_inlines(self):
             if re.search(r"\.\.", cid):
                 continue
             fname = "{}_{}".format(self.mailid, cid)
-            path = get_storage_path(fname)
+            path = os.path.relpath(get_storage_path(fname), settings.MEDIA_ROOT)
             params["fname"] = os.path.join(
                 settings.MEDIA_URL,
                 os.path.basename(get_storage_path("")),