diff --git a/cat/cat_s22/BoardConfig.mk b/cat/cat_s22/BoardConfig.mk
index 8f995cb..99db8bc 100644
--- a/cat/cat_s22/BoardConfig.mk
+++ b/cat/cat_s22/BoardConfig.mk
@@ -6,4 +6,4 @@ BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1572864000
 endif
 
 TARGET_USES_64_BIT_BINDER := true
-BOARD_SYSTEMIMAGE_AS_SYSTEM := true
+TARGET_SYSTEM_PROP := device/phh/treble/system.prop $(TARGET_SYSTEM_PROP)