diff --git a/configs/P1020RDB-PC_SPIFLASH_defconfig b/configs/P1020RDB-PC_SPIFLASH_defconfig
index dafb430..d6a188c 100644
--- a/configs/P1020RDB-PC_SPIFLASH_defconfig
+++ b/configs/P1020RDB-PC_SPIFLASH_defconfig
@@ -125,6 +125,7 @@
 CONFIG_TSEC_ENET=y
 CONFIG_PCIE_FSL=y
 CONFIG_DM_RTC=y
+CONFIG_RTC_PT7C4338=y
 CONFIG_SYS_NS16550_SERIAL=y
 CONFIG_SPI=y
 CONFIG_DM_SPI=y