diff --git a/device.mk b/device.mk
index bd37ab7..15a6fee 100644
--- a/device.mk
+++ b/device.mk
@@ -45,4 +45,6 @@ PRODUCT_PACKAGES += \
 
 # HACK: Set vendor patch level
 PRODUCT_PROPERTY_OVERRIDES += \
-    ro.vendor.build.security_patch=2099-12-31
+    ro.vendor.build.security_patch=2099-12-31 \
+    ro.bootimage.build.date.utc=0 \
+    ro.build.date.utc=0