diff --git a/target/linux/generic/config-5.4 b/target/linux/generic/config-5.4
index 48750c2cdc..b5deef31de 100644
--- a/target/linux/generic/config-5.4
+++ b/target/linux/generic/config-5.4
@@ -4331,7 +4331,7 @@ CONFIG_RFKILL=y
 # CONFIG_RTC_DRV_BQ32K is not set
 # CONFIG_RTC_DRV_BQ4802 is not set
 # CONFIG_RTC_DRV_CADENCE is not set
-# CONFIG_RTC_DRV_CMOS is not set
+CONFIG_RTC_DRV_CMOS=y
 # CONFIG_RTC_DRV_DS1286 is not set
 # CONFIG_RTC_DRV_DS1302 is not set
 # CONFIG_RTC_DRV_DS1305 is not set