diff --git a/derivations.nix b/derivations.nix
index 4f76743..b2c2ff9 100644
--- a/derivations.nix
+++ b/derivations.nix
@@ -31,4 +31,5 @@ rec {
     pkgsBuildTarget = pkgs.pkgsBuildTarget // { inherit llvm_7; };
   };
   rust-riscv32imc-crates = pkgs.callPackage ./compilers/rust-riscv32imc-crates.nix { inherit rustc; };
+  cargo = pkgs.cargo.override { inherit rustc; };
 }