diff --git a/t/Makefile.am b/t/Makefile.am
index 358f3698..b8448fe8 100644
--- a/t/Makefile.am
+++ b/t/Makefile.am
@@ -34,7 +34,5 @@ dirs:
 	touch data/hydra.conf
 	mkdir -p nix
 	mkdir -p nix/etc/nix
-	touch nix/etc/nix/nix.conf
-	echo "sandbox = false" >> nix/etc/nix/nix.conf
 	mkdir -p nix/store
 	mkdir -p nix/var