diff --git a/examples/rust_set-rust-toolchain/flake.nix b/examples/rust_set-rust-toolchain/flake.nix
index e625854d..60731a80 100644
--- a/examples/rust_set-rust-toolchain/flake.nix
+++ b/examples/rust_set-rust-toolchain/flake.nix
@@ -27,7 +27,10 @@
       packageOverrides = {
         # override all packages and set a toolchain
         "^.*" = {
-          set-toolchain.overrideRustToolchain = old: {cargo = toolchain;};
+          set-toolchain.overrideRustToolchain = old: {
+            cargo = toolchain;
+            rustc = toolchain;
+          };
           check-toolchain-version.overrideAttrs = old: {
             buildPhase = ''
               currentCargoVersion="$(cargo --version)"
diff --git a/examples/rust_set-rust-toolchain/projects.toml b/examples/rust_set-rust-toolchain/projects.toml
index 8b9ee99d..9d0c81e7 100644
--- a/examples/rust_set-rust-toolchain/projects.toml
+++ b/examples/rust_set-rust-toolchain/projects.toml
@@ -7,6 +7,7 @@ name = "linemd"
 relPath = ""
 subsystem = "rust"
 translator = "cargo-lock"
+builder = "build-rust-package"
 
 [[linemd.subsystemInfo.crates]]
 name = "linemd"