diff --git a/src/ripple/protocol/Feature.h b/src/ripple/protocol/Feature.h
index df0570d3a52..591c99dc4f2 100644
--- a/src/ripple/protocol/Feature.h
+++ b/src/ripple/protocol/Feature.h
@@ -74,7 +74,7 @@ namespace detail {
 // Feature.cpp. Because it's only used to reserve storage, and determine how
 // large to make the FeatureBitset, it MAY be larger. It MUST NOT be less than
 // the actual number of amendments. A LogicError on startup will verify this.
-static constexpr std::size_t numFeatures = 62;
+static constexpr std::size_t numFeatures = 63;
 
 /** Amendments that this server supports and the default voting behavior.
    Whether they are enabled depends on the Rules defined in the validated
@@ -349,6 +349,7 @@ extern uint256 const fixNFTokenRemint;
 extern uint256 const fixReducedOffersV1;
 extern uint256 const featureClawback;
 extern uint256 const featureXChainBridge;
+extern uint256 const featureInvariantsV1_1;
 
 }  // namespace ripple
 
diff --git a/src/ripple/protocol/impl/Feature.cpp b/src/ripple/protocol/impl/Feature.cpp
index dcb35641360..72220161d6a 100644
--- a/src/ripple/protocol/impl/Feature.cpp
+++ b/src/ripple/protocol/impl/Feature.cpp
@@ -456,6 +456,7 @@ REGISTER_FIX    (fixReducedOffersV1,            Supported::yes, VoteBehavior::De
 REGISTER_FEATURE(Clawback,                      Supported::yes, VoteBehavior::DefaultNo);
 REGISTER_FEATURE(AMM,                           Supported::yes, VoteBehavior::DefaultNo);
 REGISTER_FEATURE(XChainBridge,                  Supported::no,  VoteBehavior::DefaultNo);
+REGISTER_FEATURE(InvariantsV1_1,                Supported::yes, VoteBehavior::DefaultNo);
 
 // The following amendments are obsolete, but must remain supported
 // because they could potentially get enabled.