diff --git a/jeschli/1systems/bln/config.nix b/jeschli/1systems/bln/config.nix
index 873c0fa3d..9e5f8c52e 100644
--- a/jeschli/1systems/bln/config.nix
+++ b/jeschli/1systems/bln/config.nix
@@ -36,7 +36,7 @@
     }
   ];
 
-  networking.hostName = "BLN02NB0154"; # Define your hostname.
+  networking.hostName = lib.mkForce "BLN02NB0154"; # Define your hostname.
   networking.networkmanager.enable = true;
   # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
 
diff --git a/jeschli/1systems/reagenzglas/config.nix b/jeschli/1systems/reagenzglas/config.nix
index d65e897ae..eb2ba179e 100644
--- a/jeschli/1systems/reagenzglas/config.nix
+++ b/jeschli/1systems/reagenzglas/config.nix
@@ -29,7 +29,6 @@
     allowDiscards = true;
     }
   ];
-  networking.hostName = "reaganzglas"; # Define your hostname.
 #  networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
   networking.networkmanager.enable = true;
   # Select internationalisation properties.
diff --git a/jeschli/2configs/default.nix b/jeschli/2configs/default.nix
index 77281b301..6d788d283 100644
--- a/jeschli/2configs/default.nix
+++ b/jeschli/2configs/default.nix
@@ -64,4 +64,5 @@ with import <stockholm/lib>;
   ];
 
   krebs.enable = true;
+  networking.hostName = config.krebs.build.host.name;
 }