diff --git a/src/mainboard/google/cyan/Kconfig b/src/mainboard/google/cyan/Kconfig
index 1dca2371f8..988002c87f 100644
--- a/src/mainboard/google/cyan/Kconfig
+++ b/src/mainboard/google/cyan/Kconfig
@@ -9,7 +9,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select EC_GOOGLE_CHROMEEC
 	select EC_GOOGLE_CHROMEEC_MEC
 	select EC_GOOGLE_CHROMEEC_ACPI_MEMMAP
-#	select EC_SOFTWARE_SYNC
+	select EC_SOFTWARE_SYNC
 	select ENABLE_BUILTIN_COM1
 	select HAVE_ACPI_TABLES
 	select HAVE_OPTION_TABLE