diff --git a/configs/cm_t43_defconfig b/configs/cm_t43_defconfig
index 6044ae9..98e21cf 100644
--- a/configs/cm_t43_defconfig
+++ b/configs/cm_t43_defconfig
@@ -10,3 +10,4 @@
 # CONFIG_CMD_NFS is not set
 CONFIG_DM=y
 CONFIG_SYS_NS16550=y
+CONFIG_DM_SERIAL=y