diff --git a/pkgs/tools/networking/openconnect_pa/default.nix b/pkgs/tools/networking/openconnect_pa/default.nix
index 4fbae644f18d..ec928d0e40db 100644
--- a/pkgs/tools/networking/openconnect_pa/default.nix
+++ b/pkgs/tools/networking/openconnect_pa/default.nix
@@ -5,7 +5,7 @@ assert (openssl != null) == (gnutls == null);
 let
   version = "unstable-2018-10-08";
   name = "openconnect_pa-${version}";
-in stdenv.mkDerivation {
+in stdenv.mkDerivation rec {
   inherit name;
 
   outputs = [ "out" "dev" ];