diff --git a/delta_performer.h b/delta_performer.h
index ca694ed..cd059e4 100644
--- a/delta_performer.h
+++ b/delta_performer.h
@@ -37,6 +37,8 @@
   static const uint64_t kDeltaVersionSize;
   static const uint64_t kDeltaManifestSizeSize;
   static const uint64_t kSupportedMajorPayloadVersion;
+  static const uint64_t kSupportedMinorPayloadVersion;
+  static const uint64_t kFullPayloadMinorVersion;
   static const char kUpdatePayloadPublicKeyPath[];
 
   // Defines the granularity of progress logging in terms of how many "completed