diff --git a/packages/bookwyrm/package.nix b/packages/bookwyrm/package.nix
index f20de90..e64c346 100644
--- a/packages/bookwyrm/package.nix
+++ b/packages/bookwyrm/package.nix
@@ -111,7 +111,7 @@ mkDerivation {
 			export EMAIL_HOST=""
 			export EMAIL_HOST_USER=""
 			export EMAIL_HOST_PASSWORD=""
-			export SECRET_KEY="\$( cat /etc/nixos/assets/bookwyrm-secret-key )"  # The escape here is required in order to retrieve the key file contents at runtime
+			export SECRET_KEY="\$( ${coreutils-full}/bin/cat /etc/nixos/assets/bookwyrm-secret-key )"  # The escape here is required in order to retrieve the key file contents at runtime
 
 			${gunicorn}/bin/gunicorn bookwyrm.wsgi:application --bind=unix:/run/bookwyrm/http-socket
 		EOF