diff --git a/kconfigs/hikey.conf b/kconfigs/hikey.conf
index 9399da395e4f8915687ced7c7650888ce7839c65..8cffb3cf5c19114f7905ee94c4e1e8e9e6c1e3f8 100644
--- a/kconfigs/hikey.conf
+++ b/kconfigs/hikey.conf
@@ -4,6 +4,7 @@ CONFIG_PINCTRL_SINGLE=y
 CONFIG_STAGING=y
 CONFIG_ION=y
 CONFIG_ION_DUMMY=y
+CONFIG_ION_UNMAPPED_HEAP=y
 CONFIG_ION_DUMMY_UNMAPPED_HEAP=y
 CONFIG_ION_DUMMY_UNMAPPED_BASE=0x3e800000
 CONFIG_ION_DUMMY_UNMAPPED_SIZE=0x00400000