diff --git a/debian-buster-zfs-root.sh b/debian-buster-zfs-root.sh
index 09dcee4..91523d1 100755
--- a/debian-buster-zfs-root.sh
+++ b/debian-buster-zfs-root.sh
@@ -204,7 +204,7 @@ zfs create $ZPOOL/ROOT
 zfs create -o mountpoint=/ $ZPOOL/ROOT/debian-$TARGETDIST
 zpool set bootfs=$ZPOOL/ROOT/debian-$TARGETDIST $ZPOOL
 
-zfs create -o mountpoint=/tmp -o setuid=off -o exec=off -o devices=off -o com.sun:auto-snapshot=false -o quota=$SIZETMP $ZPOOL/tmp
+zfs create -o mountpoint=/tmp -o setuid=off -o devices=off -o com.sun:auto-snapshot=false -o quota=$SIZETMP $ZPOOL/tmp
 chmod 1777 /target/tmp
 
 # /var needs to be mounted via fstab, the ZFS mount script runs too late during boot