diff --git a/pkgs/top-level/release.nix b/pkgs/top-level/release.nix
index 0b4d1005680..c05140a86a1 100644
--- a/pkgs/top-level/release.nix
+++ b/pkgs/top-level/release.nix
@@ -225,6 +225,7 @@ in {
   portmap = linux;
   postgresql = all;
   procps = linux;
+  pthreadmanpages = all;
   python = allBut "i686-cygwin";
   pythonFull = linux;
   qt3 = allBut "i686-cygwin";