diff --git a/os/remote-builds/default.nix b/os/remote-builds/default.nix
index c513c4f..d4d583c 100644
--- a/os/remote-builds/default.nix
+++ b/os/remote-builds/default.nix
@@ -43,11 +43,11 @@ in
     };
     nix = {
       buildMachines = builtins.map (vivariumBuilder: vivariumBuilderDefault // vivariumBuilder) vivariumBuilders;
-      distributedBuilds = true;
+      distributedBuilds = false;
       settings = {
         builders-use-substitutes = true;
         trusted-public-keys = publicKeys;
-        substituters = builtins.map (builder: "${builder.protocol}://${builder.sshUser}@${builder.hostName}") config.nix.buildMachines;
+        trusted-substituters = builtins.map (builder: "${builder.protocol}://${builder.sshUser}@${builder.hostName}") config.nix.buildMachines;
       };
     };
   };