diff --git a/cats22flip.mk b/cats22flip.mk
index 113d58d..7d47403 100644
--- a/cats22flip.mk
+++ b/cats22flip.mk
@@ -7,4 +7,5 @@ PRODUCT_SYSTEM_BRAND := wePhone
 PRODUCT_MODEL := Cat S22 Flip = wePhone
 
 PRODUCT_SYSTEM_PROPERTIES += \
-    ro.system.ota.json_url=https://git.mezimmah.net/treble/ota/raw/branch/main
\ No newline at end of file
+    ro.system.ota.json_url=https://git.mezimmah.net/treble/ota/raw/branch/main \
+    persist.sys.phh.mainkeys=0
\ No newline at end of file