diff --git a/srcpkgs/nix/template b/srcpkgs/nix/template
index 01dae113ead..425e9ebec69 100644
--- a/srcpkgs/nix/template
+++ b/srcpkgs/nix/template
@@ -27,6 +27,8 @@ post_install() {
 }
 
 nix_package() {
+	# Default configuration file.
+	conf_files="/etc/nix/nix.conf"
 	# Extra run-time dependencies.
 	depends="curl perl-WWW-Curl perl-DBD-SQLite"
 	# Create required build users/groups.