diff --git a/card10-alloc/src/lib.rs b/card10-alloc/src/lib.rs
index b19f3c0ff5ceaf1601ff774fe9105fa0de3c8f4b..1cecb6a68b26909f0ce987fa103e16cb3482b0b1 100644
--- a/card10-alloc/src/lib.rs
+++ b/card10-alloc/src/lib.rs
@@ -2,7 +2,7 @@
 //!
 //! Reproduces l0dable hardware.c's `_sbrk()`
 //!
-//! Unfortunately, we cannot link _sbrk()` directly because it
+//! Unfortunately, we cannot link `_sbrk()` directly because it
 //! references the unwieldy `errno`.
 //!
 //! ## Example