diff --git a/README.md b/README.md
index 58e4156..a5f203a 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ The API is packed with a full set of standard built-in flag types, from `int` to
 
 ## Features
 
+- Fully tested with 3K+ unit tests
 - Built-in flag types
   - bool and []bool
   - byte