diff --git a/tinkernet/rust-toolchain.toml b/tinkernet/rust-toolchain.toml
index 09139ba2..afab8639 100644
--- a/tinkernet/rust-toolchain.toml
+++ b/tinkernet/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
 channel = "nightly-2024-02-06"
 targets = ["wasm32-unknown-unknown"]
-components = [ "rustfmt", "rustc", "rust-std", "cargo", "clippy", "llvm-tools-preview"]
+components = [ "rustfmt", "rustc", "rust-std", "cargo", "clippy", "llvm-tools-preview", "rust-src"]