diff --git a/arch/arm/configs/mx5_defconfig b/arch/arm/configs/mx5_defconfig
index ede3cc2..8eec865 100644
--- a/arch/arm/configs/mx5_defconfig
+++ b/arch/arm/configs/mx5_defconfig
@@ -30,6 +30,7 @@ CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_PREEMPT_VOLUNTARY=y
 CONFIG_AEABI=y
+CONFIG_HIGHMEM=y
 # CONFIG_OABI_COMPAT is not set
 CONFIG_DEFAULT_MMAP_MIN_ADDR=32768
 CONFIG_CMDLINE="noinitrd console=ttymxc0,115200"