diff --git a/README.md b/README.md
index b2c941b..f7f66ec 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # TargetFrameBuff
 
+[![ClassicAPI](https://img.shields.io/badge/ClassicAPI-Optional-yellow.svg)](https://github.com/brues-code/ClassicAPI)
+
 Shows up to **32 buffs** and **16 debuffs** on the default target frame of a
 1.12 client (tested target: Turtle WoW 1.18.1). Buffs sit above the frame in
 rows of 5-11-11-5, debuffs below it in rows of 4-4-8.