diff --git a/payload_consumer/payload_constants.cc b/payload_consumer/payload_constants.cc
index 6e7cd00..dacd9fb 100644
--- a/payload_consumer/payload_constants.cc
+++ b/payload_consumer/payload_constants.cc
@@ -30,6 +30,7 @@
 const uint32_t kOpSrcHashMinorPayloadVersion = 3;
 const uint32_t kBrotliBsdiffMinorPayloadVersion = 4;
 const uint32_t kPuffdiffMinorPayloadVersion = 5;
+const uint32_t kVerityMinorPayloadVersion = 6;
 
 const uint64_t kMinSupportedMajorPayloadVersion = 1;
 const uint64_t kMaxSupportedMajorPayloadVersion = 2;
diff --git a/payload_consumer/payload_constants.h b/payload_consumer/payload_constants.h
index 0833484..7f76898 100644
--- a/payload_consumer/payload_constants.h
+++ b/payload_consumer/payload_constants.h
@@ -53,6 +53,9 @@
 // The minor version that allows PUFFDIFF operation.
 extern const uint32_t kPuffdiffMinorPayloadVersion;
 
+// The minor version that allows Verity hash tree and FEC generation.
+extern const uint32_t kVerityMinorPayloadVersion;
+
 // The minimum and maximum supported minor version.
 extern const uint32_t kMinSupportedMinorPayloadVersion;
 extern const uint32_t kMaxSupportedMinorPayloadVersion;