diff --git a/configs/edison_defconfig b/configs/edison_defconfig
index f0f3449..eb9f9a0 100644
--- a/configs/edison_defconfig
+++ b/configs/edison_defconfig
@@ -33,6 +33,7 @@
 CONFIG_DFU_MMC=y
 CONFIG_DFU_RAM=y
 CONFIG_DM_PCI_COMPAT=y
+CONFIG_RTC_MC146818=y
 CONFIG_USB_DWC3_GADGET=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_MANUFACTURER="Intel"