diff --git a/README.md b/README.md
index 37da506..5b8e2d3 100644
--- a/README.md
+++ b/README.md
@@ -65,10 +65,12 @@ workspace/
 Run these commands from the workspace root:
 
 ```powershell
+$board = "stm32f4_disco"
+
 west build -p always `
   -s apps\kconfig_hello `
   -d build\kconfig_hello `
-  -b stm32f4_disco
+  -b $board
 
 west flash -d build\kconfig_hello
 ```