diff --git a/README.md b/README.md
index 8924f32c..0ae718ed 100644
--- a/README.md
+++ b/README.md
@@ -3268,7 +3268,7 @@ Other Style Guides
     ```
 
   <a name="naming--Acronyms-and-Initialisms"></a>
-  - [23.9](#naming--Acronyms-and-Initialisms) Acronyms and initialisms should always be all capitalized, or all lowercased.
+  - [23.9](#naming--Acronyms-and-Initialisms) Acronyms and initialisms should always be all uppercased, or all lowercased.
 
     > Why? Names are for readability, not to appease a computer algorithm.