diff --git a/src/modules/visibility.md b/src/modules/visibility.md
index 4ad31046..d17356c5 100644
--- a/src/modules/visibility.md
+++ b/src/modules/visibility.md
@@ -31,3 +31,8 @@ fn main() {
     outer::public();
 }
 ```
+<details>
+    
+* Use the `pub` keyword to make mods public.   
+    
+</details>