diff --git a/pkgs/tools/package-management/nix-doc/default.nix b/pkgs/tools/package-management/nix-doc/default.nix
index 59704a0a6836..34873438d556 100644
--- a/pkgs/tools/package-management/nix-doc/default.nix
+++ b/pkgs/tools/package-management/nix-doc/default.nix
@@ -35,13 +35,11 @@ rustPlatform.buildRustPackage rec {
   # the wrong Nix version (disabling bindnow permits loading libraries
   # requiring unavailable symbols if they are unreached)
   hardeningDisable = lib.optionals withPlugin [ "bindnow" ];
-  # Due to a Rust bug, setting -Z relro-level to anything including "off" on
+
+  # Due to a Rust bug, setting -C relro-level to anything including "off" on
   # macOS will cause link errors
   env = lib.optionalAttrs (withPlugin && stdenv.isLinux) {
-    # nix-doc does not use nightly features, however, there is no other way to
-    # set relro-level
-    RUSTC_BOOTSTRAP = 1;
-    RUSTFLAGS = "-Z relro-level=partial";
+    RUSTFLAGS = "-C relro-level=partial";
   };
 
   cargoHash = "sha256-CHagzXTG9AfrFd3WmHanQ+YddMgmVxSuB8vK98A1Mlw=";