diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 645529a5dd..6acb849e89 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,5 +1,5 @@
 [toolchain]
 channel = "1.74.0"
-components = ["rustfmt", "clippy"]
+components = ["rust-src", "rustfmt", "clippy"]
 targets = ["wasm32-unknown-unknown"]
 profile = "minimal"