diff --git a/components/rustlib/rust-toolchain.toml b/components/rustlib/rust-toolchain.toml
new file mode 100644
index 0000000..4a4152d
--- /dev/null
+++ b/components/rustlib/rust-toolchain.toml
@@ -0,0 +1,3 @@
+[toolchain]
+channel = "esp"
+