diff --git a/derivations.nix b/derivations.nix
index c3fbc37..f8519e6 100644
--- a/derivations.nix
+++ b/derivations.nix
@@ -20,11 +20,6 @@ rec {
     name = oa.name + "-riscv";
     cmakeFlags = oa.cmakeFlags ++ ["-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=RISCV"];
   });
-  lld_7 = (pkgs.lld_7.overrideAttrs(oa: {
-    name = oa.name + "-riscv";
-  })).override {
-    llvm = llvm_7;
-  };
   rustc = (pkgs.rustc.overrideAttrs(oa: {
     name = "${oa.pname}-${oa.version}-riscv";
   })).override {
diff --git a/shell-firmware.nix b/shell-firmware.nix
index 1fa2ca9..be9a9b5 100644
--- a/shell-firmware.nix
+++ b/shell-firmware.nix
@@ -3,6 +3,6 @@ let
   hx = import ./derivations.nix { inherit pkgs; };
 in
   pkgs.mkShell {
-    buildInputs = [ hx.rustc hx.rust-riscv32imc-crates hx.lld_7 hx.cargo ];
-    RUSTFLAGS="-L ${hx.rust-riscv32imc-crates}/lib/rustlib/riscv32imc-unknown-none-elf/lib -C linker=lld";
+    buildInputs = [ hx.rustc hx.rust-riscv32imc-crates hx.binutils-riscv hx.cargo ];
+    RUSTFLAGS="-L ${hx.rust-riscv32imc-crates}/lib/rustlib/riscv32imc-unknown-none-elf/lib -C linker=riscv32-unknown-elf-ld -C link-arg=-Tlink.x";
   }