diff --git a/hosts/mu/hardware.nix b/hosts/mu/hardware.nix
index 501e6d3..f3f5e85 100644
--- a/hosts/mu/hardware.nix
+++ b/hosts/mu/hardware.nix
@@ -27,6 +27,7 @@
   };
   fileSystems."/nix" = {
     device = "/dev/disk/by-label/nix";
+    neededForBoot = true;
     fsType = "ext4";
   };
 
diff --git a/hosts/omega/hardware.nix b/hosts/omega/hardware.nix
index 832f36c..3df3ad7 100644
--- a/hosts/omega/hardware.nix
+++ b/hosts/omega/hardware.nix
@@ -26,6 +26,7 @@
   };
   fileSystems."/nix" = {
     device = "/dev/disk/by-label/nix";
+    neededForBoot = true;
     fsType = "ext4";
   };
 
diff --git a/hosts/tor/hardware.nix b/hosts/tor/hardware.nix
index 719848b..6ce4b26 100644
--- a/hosts/tor/hardware.nix
+++ b/hosts/tor/hardware.nix
@@ -20,6 +20,7 @@
   };
   fileSystems."/nix" = {
     device = "/dev/disk/by-label/nix";
+    neededForBoot = true;
     fsType = "ext4";
   };
 
diff --git a/hosts/zeta/hardware.nix b/hosts/zeta/hardware.nix
index 1fa24a9..9de621d 100644
--- a/hosts/zeta/hardware.nix
+++ b/hosts/zeta/hardware.nix
@@ -26,6 +26,7 @@
   };
   fileSystems."/nix" = {
     device = "/dev/disk/by-label/nix";
+    neededForBoot = true;
     fsType = "ext4";
   };