diff --git a/README.md b/README.md
index 2da8193..dc28b16 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ cd lib/sw_apps/zynq_fsbl/src/ && make BOARD=zed CFLAGS=-DFSBL_DEBUG_INFO
 Requirements [TBC]:
 - cmake
 - arm-none-eabi-gcc
-
+- doxygen
 
 
 satisfy Rust requirements