diff --git a/modules/network.nix b/modules/network.nix
index 2937276..2c91f1a 100644
--- a/modules/network.nix
+++ b/modules/network.nix
@@ -8,6 +8,10 @@
     firewall.enable = false;
   };
 
+  services.resolved = {
+    fallbackDns = [ ];  # Disable fallback DNS. DNS will fail if resolvers are unconfigured
+  };
+
   # Faster boot.
   systemd.network.wait-online.enable = false;
 }