diff --git a/pkgs/development/libraries/termbox/default.nix b/pkgs/development/libraries/termbox/default.nix
index 51c2ca1c8084..22657cd663a2 100644
--- a/pkgs/development/libraries/termbox/default.nix
+++ b/pkgs/development/libraries/termbox/default.nix
@@ -1,12 +1,12 @@
 { lib, stdenv, fetchFromGitHub }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "termbox";
   version = "1.1.4";
   src = fetchFromGitHub {
     owner = "termbox";
     repo = "termbox";
-    rev = "v${version}";
+    rev = "v${finalAttrs.version}";
     sha256 = "075swv6ajx8m424dbmgbf6fs6nd5q004gjpvx48gkxmnf9spvykl";
   };
 
@@ -19,4 +19,4 @@ stdenv.mkDerivation rec {
     downloadPage = "https://github.com/termbox/termbox/releases";
     maintainers = with maintainers; [ fgaz ];
   };
-}
+})