diff --git a/release.nix b/release.nix
index 28300685..715d09df 100644
--- a/release.nix
+++ b/release.nix
@@ -25,6 +25,7 @@
 # vcsserver resides.
 
 { pkgs ? import <nixpkgs> {}
+, doCheck ? true
 }:
 
 let