diff --git a/pkgs/by-name/gl/glasstty-ttf/package.nix b/pkgs/by-name/gl/glasstty-ttf/package.nix
index be84069f6939..677f8ccf3ee9 100644
--- a/pkgs/by-name/gl/glasstty-ttf/package.nix
+++ b/pkgs/by-name/gl/glasstty-ttf/package.nix
@@ -5,6 +5,9 @@
 }:
 runCommand "glasstty-ttf"
   {
+    pname = "glasstty-ttf";
+    version = "0-unstable-2018-08-07";
+
     src = fetchurl {
       url = "https://github.com/svofski/glasstty/raw/2c47ac1a0065f8b12d9732257993833d8227e3e5/Glass_TTY_VT220.ttf";
       sha256 = "sha256-2NYJaSWNr1Seuqdd7nLjA7tAMs/SAvl3uAe3uDoLLO4=";