diff --git a/target/product/core_64_bit_only.mk b/target/product/core_64_bit_only.mk
index 53c9c74..061728f 100644
--- a/target/product/core_64_bit_only.mk
+++ b/target/product/core_64_bit_only.mk
@@ -25,6 +25,9 @@
 # Set the zygote property to select the 64-bit script.
 # This line must be parsed before the one in core_minimal.mk
 PRODUCT_VENDOR_PROPERTIES += ro.zygote=zygote64
+# A 64-bit-only platform does not have dex2oat32, so make sure dex2oat64 is
+# used for dexopt.
+PRODUCT_VENDOR_PROPERTIES += dalvik.vm.dex2oat64.enabled=true
 
 TARGET_SUPPORTS_32_BIT_APPS := false
 TARGET_SUPPORTS_64_BIT_APPS := true