diff --git a/include/configs/ls2080aqds.h b/include/configs/ls2080aqds.h
index 18f30b5..81af1d9 100644
--- a/include/configs/ls2080aqds.h
+++ b/include/configs/ls2080aqds.h
@@ -325,6 +325,7 @@
 #define RTC
 #define CONFIG_RTC_DS3231               1
 #define CONFIG_SYS_I2C_RTC_ADDR         0x68
+#define CONFIG_RTC_ENABLE_32KHZ_OUTPUT
 
 /* EEPROM */
 #define CONFIG_ID_EEPROM