diff --git a/app/boards/shields/mach3/readme.md b/app/boards/shields/mach3/readme.md
new file mode 100644
index 00000000..dbf74a04
--- /dev/null
+++ b/app/boards/shields/mach3/readme.md
@@ -0,0 +1 @@
+Build command: ```west build -p -b nice_nano_v2 -- -DSHIELD=mach3```
\ No newline at end of file