diff --git a/pkgs/development/compilers/rustc/head.nix b/pkgs/development/compilers/rustc/head.nix
index 9ee8cb524c2..b262d56f9e5 100644
--- a/pkgs/development/compilers/rustc/head.nix
+++ b/pkgs/development/compilers/rustc/head.nix
@@ -82,4 +82,9 @@ in stdenv.mkDerivation {
   preCheck = "export TZDIR=${tzdata}/share/zoneinfo";
 
   doCheck = true;
+
+  postInstall = ''
+      # Install documentation
+      cp -r doc "$out/share/doc"
+  '';
 }