diff --git a/pmb/install/losetup.py b/pmb/install/losetup.py
index 96221c27..70591807 100644
--- a/pmb/install/losetup.py
+++ b/pmb/install/losetup.py
@@ -19,6 +19,7 @@ along with pmbootstrap.  If not, see <http://www.gnu.org/licenses/>.
 import glob
 import json
 import logging
+import os
 
 import pmb.helpers.mount
 import pmb.helpers.run
@@ -27,7 +28,8 @@ import pmb.chroot
 
 def init(args):
     pmb.helpers.run.root(args, ["modprobe", "loop"])
-    for loopdev in glob.glob("/dev/loop*"):
+    loopdevices = [loopdev for loopdev in glob.glob("/dev/loop*") if not os.path.isdir(loopdev)]
+    for loopdev in loopdevices:
         pmb.helpers.mount.bind_blockdevice(args, loopdev,
                                            args.work + "/chroot_native/" + loopdev)