diff --git a/Stellar-ledger.x b/Stellar-ledger.x
index a17036b..14b0bdc 100644
--- a/Stellar-ledger.x
+++ b/Stellar-ledger.x
@@ -14,6 +14,10 @@ enum StellarValueType
 {
     STELLAR_VALUE_BASIC = 0,
     STELLAR_VALUE_SIGNED = 1
+#ifdef CAP_0083
+    ,
+    STELLAR_VALUE_EMPTY_TX_SET = 2
+#endif
 };
 
 struct LedgerCloseValueSignature
@@ -43,6 +47,16 @@ struct StellarValue
         void;
     case STELLAR_VALUE_SIGNED:
         LedgerCloseValueSignature lcValueSignature;
+#ifdef CAP_0083
+    case STELLAR_VALUE_EMPTY_TX_SET:
+        struct
+        {
+            Hash txSetHash;
+            Hash previousLedgerHash;
+            uint32 previousLedgerVersion;
+            LedgerCloseValueSignature lcValueSignature;
+        } proposedValue;
+#endif
     }
     ext;
 };