diff --git a/instances/heimdall/hardware-configuration.nix b/instances/heimdall/hardware-configuration.nix
index 0343b79..f5b1b60 100644
--- a/instances/heimdall/hardware-configuration.nix
+++ b/instances/heimdall/hardware-configuration.nix
@@ -45,7 +45,7 @@
     };
   };
 
-  swapDevices = [ ];
+  swapDevices = [{ device = "/swapfile"; size = 1024 * 8; }];
 
   # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
   # (the default) this is the recommended approach. When using systemd-networkd it's