diff --git a/pkgs/by-name/wc/wcslib/package.nix b/pkgs/by-name/wc/wcslib/package.nix
index 95bb428218cab..0dd31f29b09cf 100644
--- a/pkgs/by-name/wc/wcslib/package.nix
+++ b/pkgs/by-name/wc/wcslib/package.nix
@@ -23,6 +23,10 @@ stdenv.mkDerivation rec {
     "man"
   ];
 
+  postInstall = ''
+    rm $out/share/doc/wcslib/wcslib
+  '';
+
   meta = {
     homepage = "https://www.atnf.csiro.au/people/mcalabre/WCS/";
     description = "World Coordinate System library for astronomy";