diff --git a/pkgs/development/compilers/rustc/generic.nix b/pkgs/development/compilers/rustc/generic.nix
index 9c95dbb1003a..d1091643f779 100644
--- a/pkgs/development/compilers/rustc/generic.nix
+++ b/pkgs/development/compilers/rustc/generic.nix
@@ -136,6 +136,8 @@ stdenv.mkDerivation {
 
   enableParallelBuilding = true;
 
+  outputs = [ "out" "doc" ];
+
   preCheck = "export TZDIR=${tzdata}/share/zoneinfo";
 
   doCheck = true;