diff --git a/roots.cpp b/roots.cpp
index 8907bbd..184e799 100644
--- a/roots.cpp
+++ b/roots.cpp
@@ -333,6 +333,7 @@
     "-f",
     "-O", "encrypt",
     "-O", "quota",
+    "-O", "verity",
     "-w", std::to_string(kSectorSize),
     v->blk_device,
   };