diff --git a/pkgs/development/compilers/rustc/head.nix b/pkgs/development/compilers/rustc/head.nix
index a2d5230ca8f..b10e593ed39 100644
--- a/pkgs/development/compilers/rustc/head.nix
+++ b/pkgs/development/compilers/rustc/head.nix
@@ -88,9 +88,4 @@ in stdenv.mkDerivation {
   preCheck = "export TZDIR=${tzdata}/share/zoneinfo";
 
   doCheck = true;
-
-  postInstall = ''
-      # Install documentation
-      cp -r doc "$out/share/doc"
-  '';
 }