diff --git a/src/intrinsics/mod.rs b/src/intrinsics/mod.rs
index 2e5813556aaf..26f14532b458 100644
--- a/src/intrinsics/mod.rs
+++ b/src/intrinsics/mod.rs
@@ -1,4 +1,5 @@
 //! Codegen of intrinsics. This includes `extern "rust-intrinsic"`,
+//! functions marked with the `#[rustc_intrinsic]` attribute
 //! and LLVM intrinsics that have symbol names starting with `llvm.`.
 
 macro_rules! intrinsic_args {