diff --git a/device.mk b/device.mk
index e9049f28..1b606781 100644
--- a/device.mk
+++ b/device.mk
@@ -599,7 +599,7 @@ PRODUCT_PACKAGES += \
 
 # Properties
 TARGET_PRODUCT_PROP += device/google/gs101/product.prop
-TARGET_SYSTEM_PROP += device/google/gs101/system.prop
+TARGET_SYSTEM_EXT_PROP += device/google/gs101/system_ext.prop
 
 # Tethering
 PRODUCT_PACKAGES += \
diff --git a/system.prop b/system_ext.prop
similarity index 100%
rename from system.prop
rename to system_ext.prop