diff --git a/scripts/system/etc/gdm3/PostSession/Default b/scripts/system/etc/gdm3/PostSession/Default
index d4b65befa..4c8ebf678 100755
--- a/scripts/system/etc/gdm3/PostSession/Default
+++ b/scripts/system/etc/gdm3/PostSession/Default
@@ -23,4 +23,4 @@ systemctl stop user@1000.service
 kill $(lsof -t "$HOME" /mnt) $(ps --no-headers -u "$USER" -o pid)
 umount "$HOME"/.cache "$HOME" /mnt
 umount /dev/disk/by-partlabel/01-home ||:
-wipefs -a /dev/disk/by-partlabel/01-tmp-home
+/usr/sbin/wipefs -a /dev/disk/by-partlabel/01-tmp-home