diff --git a/second-edition/src/ch15-04-rc.md b/second-edition/src/ch15-04-rc.md
index 6670d8dec..4fe4807e8 100644
--- a/second-edition/src/ch15-04-rc.md
+++ b/second-edition/src/ch15-04-rc.md
@@ -232,7 +232,7 @@ of the owners still exist.
 
 `Rc<T>` allows us to share data between multiple parts of our program for
 reading only, via immutable references. If `Rc<T>` allowed us to have multiple
-mutable references too, we’d be able to violate one of the the borrowing rules
+mutable references too, we’d be able to violate one of the borrowing rules
 that we discussed in Chapter 4: multiple mutable borrows to the same place can
 cause data races and inconsistencies. But being able to mutate data is very
 useful! In the next section, we’ll discuss the interior mutability pattern and