diff --git a/target/product/runtime_libart.mk b/target/product/runtime_libart.mk
index dc78368..58234a8 100644
--- a/target/product/runtime_libart.mk
+++ b/target/product/runtime_libart.mk
@@ -178,3 +178,6 @@
 PRODUCT_SYSTEM_PROPERTIES += \
     dalvik.vm.useartservice=true \
     dalvik.vm.enable_pr_dexopt=true
+
+# Copy preopted files from system_b on first boot.
+PRODUCT_SYSTEM_PROPERTIES += ro.cp_system_other_odex=1