diff --git a/role/dropbear/default.nix b/role/dropbear/default.nix
index 210a65a..5fed692 100644
--- a/role/dropbear/default.nix
+++ b/role/dropbear/default.nix
@@ -18,7 +18,7 @@
       echo 'cryptsetup-askpass' >> /root/.profile
     '';
   };
-  boot.kernelParams = [ "ip=::::montalin:eth0:dhcp" ];
+  boot.kernelParams = [ "ip=10.1.2.1::10.1.2.2:255.255.255.0:montalin:eth0:none:10.1.2.1" ]; # see https://www.kernel.org/doc/Documentation/filesystems/nfs/nfsroot.txt
 
   boot.initrd.postMountCommands = ''
     ip link set eth0 down