diff --git a/conf/fstab.postinstall b/conf/fstab.ro.postinstall
similarity index 100%
rename from conf/fstab.postinstall
rename to conf/fstab.ro.postinstall
diff --git a/device.mk b/device.mk
index 3cb6f7d..ef76fac 100644
--- a/device.mk
+++ b/device.mk
@@ -1002,7 +1002,7 @@ PRODUCT_PRODUCT_PROPERTIES += \
 	ro.postinstall.fstab.prefix=/product
 
 PRODUCT_COPY_FILES += \
-	device/google/zumapro/conf/fstab.postinstall:$(TARGET_COPY_OUT_PRODUCT)/etc/fstab.postinstall
+	device/google/zumapro/conf/fstab.ro.postinstall:$(TARGET_COPY_OUT_PRODUCT)/etc/fstab.postinstall
 
 # fastbootd
 PRODUCT_PACKAGES += \