diff --git a/examples/message-board/message-board.js b/examples/message-board/message-board.js
index de057f0..e8a8a11 100644
--- a/examples/message-board/message-board.js
+++ b/examples/message-board/message-board.js
@@ -115,6 +115,7 @@ const interatctiveInterface = async () => {
                         if (modifyContract === 'y' || modifyContract === 'Y') {
                             unl = await askForInput('Comma seperated UNL <pubkey1>,<pubkey2>,...');
                             execute = await askForInput('Execute contract? (optional)');
+                            roundtime = await askForInput('Roundtime? (optional)');
                             log = await askForInput('log <{true|false},max_mbytes_per_file,max_file_count> (optional)');
                             if (log) {
                                 split = log.split(',');
@@ -129,6 +130,7 @@ const interatctiveInterface = async () => {
                             }
                             config.contract = {
                                 execute: execute ? (execute === 'true' ? true : false) : undefined,
+                                roundtime: roundtime ? parseInt(roundtime) : undefined,
                                 log: log ? {
                                     enable: split[0] === 'true' ? true : false,
                                     max_mbytes_per_file: parseInt(split[1]),
diff --git a/src/hp_manager.cpp b/src/hp_manager.cpp
index d775263..ee3d86d 100644
--- a/src/hp_manager.cpp
+++ b/src/hp_manager.cpp
@@ -666,6 +666,9 @@ namespace hp
             if (config.contract.execute.has_value())
                 d["contract"]["execute"] = config.contract.execute.value();
 
+            if (config.contract.roundtime.has_value())
+                d["contract"]["roundtime"] = config.contract.roundtime.value();
+
             if (config.contract.log.enable.has_value())
                 d["contract"]["log"]["enable"] = config.contract.log.enable.value();
 
@@ -726,7 +729,7 @@ namespace hp
 
             if (config.mesh.msg_forwarding.has_value())
                 d["mesh"]["msg_forwarding"] = config.mesh.msg_forwarding.value();
-            
+
             if (config.mesh.max_connections.has_value())
                 d["mesh"]["max_connections"] = config.mesh.max_connections.value();
 
@@ -741,7 +744,7 @@ namespace hp
 
             if (config.mesh.max_bytes_per_min.has_value())
                 d["mesh"]["max_bytes_per_min"] = config.mesh.max_bytes_per_min.value();
-            
+
             if (config.mesh.max_bad_msgs_per_min.has_value())
                 d["mesh"]["max_bad_msgs_per_min"] = config.mesh.max_bad_msgs_per_min.value();
 
diff --git a/src/msg/json/msg_json.cpp b/src/msg/json/msg_json.cpp
index 42b557a..52d82ae 100644
--- a/src/msg/json/msg_json.cpp
+++ b/src/msg/json/msg_json.cpp
@@ -281,6 +281,9 @@ namespace msg::json
             if (contract.contains(msg::FLD_EXECUTE))
                 msg.config.contract.execute = contract[msg::FLD_EXECUTE].as<bool>();
 
+            if (contract.contains(msg::FLD_ROUNDTIME))
+                msg.config.contract.roundtime = contract[msg::FLD_ROUNDTIME].as<uint32_t>();
+
             if (contract.contains(msg::FLD_LOG))
             {
                 const jsoncons::json &log = contract[msg::FLD_LOG];
diff --git a/src/msg/msg_common.hpp b/src/msg/msg_common.hpp
index 13471aa..21d0131 100644
--- a/src/msg/msg_common.hpp
+++ b/src/msg/msg_common.hpp
@@ -36,6 +36,7 @@ namespace msg
 
     struct contract_config
     {
+        std::optional<uint32_t> roundtime; 
         std::set<std::string> unl;
         std::optional<bool> execute;
         c_log_config log;
@@ -139,6 +140,7 @@ namespace msg
     constexpr const char *FLD_MESH = "mesh";
     constexpr const char *FLD_USER = "user";
     constexpr const char *FLD_EXECUTE = "execute";
+    constexpr const char *FLD_ROUNDTIME = "roundtime";
     constexpr const char *FLD_LOG = "log";
     constexpr const char *FLD_LOG_LEVEL = "log_level";
     constexpr const char *FLD_ENABLE = "enable";