diff --git a/nixos/machines/crash/configuration.nix b/nixos/machines/crash/configuration.nix
index 6a49499..cf64b00 100644
--- a/nixos/machines/crash/configuration.nix
+++ b/nixos/machines/crash/configuration.nix
@@ -12,10 +12,11 @@
   # Setup nixbuild.net, since this laptop is somewhat under powered
   programs.ssh.extraConfig = ''
     Host eu.nixbuild.net
-    PubkeyAcceptedKeyTypes ssh-ed25519
-    ServerAliveInterval 60
-    IPQoS throughput
-    IdentityFile /home/nathan/.ssh/id_ed25519
+      PubkeyAcceptedKeyTypes ssh-ed25519
+      ServerAliveInterval 60
+      IPQoS throughput
+      IdentityFile /home/nathan/.ssh/id_ed25519
+      ControlMaster auto
   '';
   programs.ssh.knownHosts = {
     nixbuild = {