diff --git a/nix/systems/phaedra/hardware-configuration.nix b/nix/systems/phaedra/hardware-configuration.nix
index 1e9a0ab..1730553 100644
--- a/nix/systems/phaedra/hardware-configuration.nix
+++ b/nix/systems/phaedra/hardware-configuration.nix
@@ -22,6 +22,12 @@
     fsType = "ext4";
   };
 
+  # swap
+  swapDevices = [ {
+    device = "/swapfile";
+    size   = 4096;
+  } ];
+
   # networking
   networking.useDHCP = lib.mkDefault true;
 
diff --git a/nix/systems/talathiel/hardware-configuration.nix b/nix/systems/talathiel/hardware-configuration.nix
index eddce15..2c1a0b8 100644
--- a/nix/systems/talathiel/hardware-configuration.nix
+++ b/nix/systems/talathiel/hardware-configuration.nix
@@ -22,6 +22,12 @@
     fsType = "ext4";
   };
 
+  # swap
+  swapDevices = [ {
+    device = "/swapfile";
+    size   = 4096;
+  } ];
+
   # networking
   networking.useDHCP = lib.mkDefault true;