diff --git a/apps/bootbthomebatt/README.md b/apps/bootbthomebatt/README.md
index 990dcb16b..b3e10e1cf 100644
--- a/apps/bootbthomebatt/README.md
+++ b/apps/bootbthomebatt/README.md
@@ -1,6 +1,6 @@
 # BLE BTHome Battery Service
 
-Broadcasts battery remaining percentage over BLE using the BTHome protocol
+Broadcasts battery remaining percentage over BLE using the [BTHome protocol](https://bthome.io/)
 
 ## Usage