diff --git a/tests/remote-builds.nix b/tests/remote-builds.nix
index eb80a7d7e..6fc372c70 100644
--- a/tests/remote-builds.nix
+++ b/tests/remote-builds.nix
@@ -59,6 +59,7 @@ in
           virtualisation.writableStore = true;
           virtualisation.pathsInNixDB = [ config.system.build.extraUtils ];
           nix.package = nix;
+          nix.binaryCaches = [ ];
         };
     };