diff --git a/target/linux/mpc85xx/config-3.8 b/target/linux/mpc85xx/config-3.8
index 93c777bd17d..862649daf96 100644
--- a/target/linux/mpc85xx/config-3.8
+++ b/target/linux/mpc85xx/config-3.8
@@ -136,7 +136,7 @@ CONFIG_MODULES_USE_ELF_RELA=y
 CONFIG_MPC85xx_CDS=y
 # CONFIG_MPC85xx_DS is not set
 CONFIG_MPC85xx_MDS=y
-# CONFIG_MPC85xx_RDB is not set
+CONFIG_MPC85xx_RDB=y
 CONFIG_MPIC=y
 # CONFIG_MPIC_MSGR is not set
 # CONFIG_MPIC_U3_HT_IRQS is not set