diff --git a/configs/P1020RDB-PC_36BIT_defconfig b/configs/P1020RDB-PC_36BIT_defconfig
index b693705..aea06d0 100644
--- a/configs/P1020RDB-PC_36BIT_defconfig
+++ b/configs/P1020RDB-PC_36BIT_defconfig
@@ -1,11 +1,12 @@
 CONFIG_PPC=y
 CONFIG_MPC85xx=y
 CONFIG_TARGET_P1_P2_RDB_PC=y
+CONFIG_PHYS_64BIT=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
-CONFIG_SYS_EXTRA_OPTIONS="P1020RDB_PC,36BIT"
+CONFIG_SYS_EXTRA_OPTIONS="P1020RDB_PC"
 CONFIG_BOOTDELAY=10
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_MMC=y