diff --git a/src/borrowing/interior-mutability.md b/src/borrowing/interior-mutability.md
index 8b734e39..92266803 100644
--- a/src/borrowing/interior-mutability.md
+++ b/src/borrowing/interior-mutability.md
@@ -8,7 +8,7 @@ Introduce the concept, with an example based on Mutex showing an `&self` method
 # Interior Mutability
 
 Rust provides a few safe means of modifying a value given only a shared
-reference to that value. All of these replace copmile-time checks with runtime
+reference to that value. All of these replace compile-time checks with runtime
 checks.
 
 ## `Cell` and `RefCell`