diff --git a/doc/ug/getting_started_fpga.md b/doc/ug/getting_started_fpga.md
index d0c8100..fa0e921 100644
--- a/doc/ug/getting_started_fpga.md
+++ b/doc/ug/getting_started_fpga.md
@@ -34,6 +34,7 @@
 ```console
 $ . /tools/xilinx/Vivado/2018.3/settings64.sh
 $ cd $REPO_TOP
+$ make -C sw/device SW_DIR=boot_rom clean all
 $ fusesoc --cores-root . build lowrisc:systems:top_earlgrey_nexysvideo
 ```