diff --git a/pkgs/development/tools/rust/rustup/default.nix b/pkgs/development/tools/rust/rustup/default.nix
index 3d33a608dac3..089a4a728c24 100644
--- a/pkgs/development/tools/rust/rustup/default.nix
+++ b/pkgs/development/tools/rust/rustup/default.nix
@@ -163,5 +163,6 @@ rustPlatform.buildRustPackage (finalAttrs: {
     maintainers = with lib.maintainers; [
       mic92
     ];
+    mainProgram = "rustup";
   };
 })