diff --git a/src/mainboard/google/fatcat/variants/kinmen/overridetree.cb b/src/mainboard/google/fatcat/variants/kinmen/overridetree.cb
index 2a9b91b05a..36a7c30d09 100644
--- a/src/mainboard/google/fatcat/variants/kinmen/overridetree.cb
+++ b/src/mainboard/google/fatcat/variants/kinmen/overridetree.cb
@@ -481,6 +481,7 @@ chip soc/intel/pantherlake
 						register "alc711_address.version" = "SOUNDWIRE_VERSION_1_2"
 						register "alc711_address.class" = "MIPI_CLASS_SDCA"
 						register "alc711_address.part_id" = "MIPI_DEV_ID_REALTEK_ALC721"
+						register "disable_clkstop_sm_support" = "true"
 						# SoundWire Link 3 ID 1
 						device generic 3.1 on
 							probe AUDIO AUDIO_ALC721_SNDW