diff --git a/src/mainboard/google/rex/Kconfig b/src/mainboard/google/rex/Kconfig
index 779ebf419c..c10f3f3e14 100644
--- a/src/mainboard/google/rex/Kconfig
+++ b/src/mainboard/google/rex/Kconfig
@@ -1,6 +1,7 @@
 config BOARD_GOOGLE_REX_COMMON
 	def_bool n
 	select BOARD_ROMSIZE_KB_32768
+	select EC_GOOGLE_CHROMEEC_BOARDID
 	select HAVE_ACPI_RESUME
 	select HAVE_ACPI_TABLES
 	select INTEL_LPSS_UART_FOR_CONSOLE