diff --git a/scripts/core/CONTRIB.rst b/scripts/core/CONTRIB.rst
index 72aaf1123e..7c3c525e1f 100644
--- a/scripts/core/CONTRIB.rst
+++ b/scripts/core/CONTRIB.rst
@@ -167,7 +167,7 @@ available.
 
 .. code-block:: console
 
-    $ cmake build/ -DUR_FORMAT_CPP_STYLE=ON
+    $ cmake -B build/ -DUR_FORMAT_CPP_STYLE=ON
 
 You can then follow the instructions below to use the ``generate`` target to
 regenerate the source.