diff --git a/platforms/rootfs-light/post.inc.sh b/platforms/rootfs-light/post.inc.sh
index 86d3506..1528f8f 100644
--- a/platforms/rootfs-light/post.inc.sh
+++ b/platforms/rootfs-light/post.inc.sh
@@ -63,6 +63,6 @@ fi
 #_EOF
 
 # configure default liveuser password
-echo "openmamba" | chroot $MOUNTDIR passwd liveuser --stdin
+echo "liveuser:openmamba" | chroot $MOUNTDIR chpasswd
 
 #prelink
diff --git a/platforms/rootfs/post.inc.sh b/platforms/rootfs/post.inc.sh
index e04bf31..ef60add 100644
--- a/platforms/rootfs/post.inc.sh
+++ b/platforms/rootfs/post.inc.sh
@@ -68,6 +68,6 @@ fi
 #_EOF
 
 # configure default liveuser password
-echo "openmamba" | chroot $MOUNTDIR passwd liveuser --stdin
+echo "liveuser:openmamba" | chroot $MOUNTDIR chpasswd
 
 #prelink