diff --git a/src/libcore/mem/mod.rs b/src/libcore/mem/mod.rs
index f2729168763bb..bb81d7b794bea 100644
--- a/src/libcore/mem/mod.rs
+++ b/src/libcore/mem/mod.rs
@@ -456,7 +456,7 @@ pub unsafe fn zeroed<T>() -> T {
 /// Bypasses Rust's normal memory-initialization checks by pretending to
 /// produce a value of type `T`, while doing nothing at all.
 ///
-/// **This functon is deprecated.** Use [`MaybeUninit<T>`] instead.
+/// **This function is deprecated.** Use [`MaybeUninit<T>`] instead.
 ///
 /// The reason for deprecation is that the function basically cannot be used
 /// correctly: [the Rust compiler assumes][inv] that values are properly initialized.