diff --git a/default.nix b/default.nix
index ee60e81b..d97c203b 100644
--- a/default.nix
+++ b/default.nix
@@ -92,7 +92,7 @@ in
       machine.wait_for_open_port(3000)
       machine.succeed("cp -r ${blockfrost-tests} /tmp/tests")
       machine.succeed(
-          "cd /tmp/tests && NIX_PATH=nixpkgs=${nixpkgs} nix-shell --run 'SERVER_URL=http://localhost:3000/ IS_LOCAL=true SERVICE_NAME=ryo yarn test:mainnet --run' >&2"
+          "cd /tmp/tests && NIX_PATH=nixpkgs=${nixpkgs} nix-shell --run 'SERVER_URL=http://localhost:3000/ SERVICE_NAME=ryo yarn test:mainnet --run' >&2"
       )
     '';
   };
@@ -128,7 +128,7 @@ in
       machine.wait_for_open_port(3000)
       machine.succeed("cp -r ${blockfrost-tests} /tmp/tests")
       machine.succeed(
-          "cd /tmp/tests && NIX_PATH=nixpkgs=${nixpkgs} nix-shell --run 'SERVER_URL=http://localhost:3000/ IS_LOCAL=true SERVICE_NAME=ryo yarn test:preview --run' >&2"
+          "cd /tmp/tests && NIX_PATH=nixpkgs=${nixpkgs} nix-shell --run 'SERVER_URL=http://localhost:3000/ SERVICE_NAME=ryo yarn test:preview --run' >&2"
       )
     '';
   };
@@ -164,7 +164,7 @@ in
       machine.wait_for_open_port(3000)
       machine.succeed("cp -r ${blockfrost-tests} /tmp/tests")
       machine.succeed(
-          "cd /tmp/tests && NIX_PATH=nixpkgs=${nixpkgs} nix-shell --run 'SERVER_URL=http://localhost:3000/ IS_LOCAL=true SERVICE_NAME=ryo yarn test:preprod --run' >&2"
+          "cd /tmp/tests && NIX_PATH=nixpkgs=${nixpkgs} nix-shell --run 'SERVER_URL=http://localhost:3000/ SERVICE_NAME=ryo yarn test:preprod --run' >&2"
       )
     '';
   };