diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index 421656152cb..fd3aa0d14b8 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -150,7 +150,7 @@ static std::vector<RPCArg> CreateTxDoc()
                 },
                 {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
                     {
-                        {"data", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "A key-value pair. The key must be \"data\", the value is hex-encoded data"},
+                        {"data", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "A key-value pair. The key must be \"data\", the value is hex-encoded data that becomes a part of an OP_RETURN output"},
                     },
                 },
             },
diff --git a/src/wallet/rpc/spend.cpp b/src/wallet/rpc/spend.cpp
index 567ddfcba7b..595b5f523e4 100644
--- a/src/wallet/rpc/spend.cpp
+++ b/src/wallet/rpc/spend.cpp
@@ -978,7 +978,7 @@ static std::vector<RPCArg> OutputsDoc()
         },
         {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
             {
-                {"data", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "A key-value pair. The key must be \"data\", the value is hex-encoded data"},
+                {"data", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "A key-value pair. The key must be \"data\", the value is hex-encoded data that becomes a part of an OP_RETURN output"},
             },
         },
     };