diff --git a/system_prop.mk b/system_prop.mk
index 016ec7b..108dc81 100644
--- a/system_prop.mk
+++ b/system_prop.mk
@@ -45,7 +45,8 @@ PRODUCT_SYSTEM_DEFAULT_PROPERTIES += \
 
 # RIL
 PRODUCT_SYSTEM_DEFAULT_PROPERTIES += \
-    ro.telephony.default_network=22,18
+    ro.telephony.default_network=22,18 \
+    persist.radio.add_power_save=1
 
 # UI
 PRODUCT_SYSTEM_DEFAULT_PROPERTIES += \