diff --git a/pkgs/top-level/build-for-release.nix b/pkgs/top-level/build-for-release.nix
index 819d323433f..97bd130ff7c 100644
--- a/pkgs/top-level/build-for-release.nix
+++ b/pkgs/top-level/build-for-release.nix
@@ -59,6 +59,7 @@ let
       ghc
       ghostscript
       gimp
+      gnash
       gnugrep
       gnum4
       gnumake