diff --git a/README.md b/README.md
index 00ea4af..e6a6c5d 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,7 @@ targeting.
 
 ## Supported microcontroller families
 
+- nrf51
 - stm32f100xx
 - stm32f103xx
 - stm32f30x