diff --git a/src/ripple/protocol/impl/ErrorCodes.cpp b/src/ripple/protocol/impl/ErrorCodes.cpp
index f5d8443ac..c6a97a515 100644
--- a/src/ripple/protocol/impl/ErrorCodes.cpp
+++ b/src/ripple/protocol/impl/ErrorCodes.cpp
@@ -116,6 +116,7 @@ public:
         add (rpcTXN_NOT_FOUND,         "txnNotFound",       "Transaction not found.");
         add (rpcUNKNOWN_COMMAND,       "unknownCmd",        "Unknown method.");
         add (rpcWRONG_SEED,            "wrongSeed",         "The regular key does not point as the master key.");
+        add (rpcSENDMAX_MALFORMED,     "sendMaxMalformed",  "SendMax amount malformed.");
     }
 
     ErrorInfo const& get (error_code_i code) const