diff --git a/include/xrpl/protocol/SField.h b/include/xrpl/protocol/SField.h
index e25447c394..b6ae98b48f 100644
--- a/include/xrpl/protocol/SField.h
+++ b/include/xrpl/protocol/SField.h
@@ -359,6 +359,7 @@ using SF_UINT384 = TypedField<STBitString<384>>;
 using SF_UINT512 = TypedField<STBitString<512>>;
 
 using SF_INT32 = TypedField<STInteger<std::int32_t>>;
+using SF_INT64 = TypedField<STInteger<std::int64_t>>;
 
 using SF_ACCOUNT = TypedField<STAccount>;
 using SF_AMOUNT = TypedField<STAmount>;