diff --git a/lib/openmsx/boot_stdio.xml b/lib/openmsx/boot_stdio.xml
index 6cfb7ca..c49ca68 100644
--- a/lib/openmsx/boot_stdio.xml
+++ b/lib/openmsx/boot_stdio.xml
@@ -3,5 +3,6 @@
 When booting 'openmsx -control stdio < boot_stdio.xml'
 It starts then in power off mode and without renderer for fast booting.
 -->
+	<command>set sound_driver null</command>
 	<command>set power on</command>
 </openmsx-control>