diff --git a/sdm660.mk b/sdm660.mk
index aeb85d22..146c0cd9 100644
--- a/sdm660.mk
+++ b/sdm660.mk
@@ -47,8 +47,9 @@ COMMON_PATH := device/xiaomi/sdm660-common
 # Inherit properties
 $(call inherit-product, $(COMMON_PATH)/common_prop.mk)
 
-# Inherit properties (system/build.prop)
+# Inherit properties ($PATH_PROP)
 TARGET_SYSTEM_PROP += $(COMMON_PATH)/system.prop
+TARGET_SYSTEM_EXT_PROP += $(COMMON_PATH)/system_ext.prop
 
 # A/B
 ifeq ($(ENABLE_AB), true)
diff --git a/system.prop b/system.prop
index 1ef18ab4..86979c64 100644
--- a/system.prop
+++ b/system.prop
@@ -68,10 +68,6 @@ gsm.proximity.enable=true
 # Time daemon
 persist.timed.enable=true
 
-# QCOM
-persist.vendor.dpm.feature=1    
-persist.vendor.dpm.nsrm.bkg.evt=3955
-
 # Radio
 persist.backup.ntpServer=0.pool.ntp.org
 persist.radio.aosp_usr_pref_sel=true
diff --git a/system_ext.prop b/system_ext.prop
new file mode 100644
index 00000000..f9d31d6d
--- /dev/null
+++ b/system_ext.prop
@@ -0,0 +1,4 @@
+
+# QCOM
+persist.vendor.dpm.feature=1    
+persist.vendor.dpm.nsrm.bkg.evt=3955