diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 317eab6a..c03216ef 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,6 +1,10 @@
 # Changelog
 All changes to this project will be documented in this file.
 
+## [9.2.3] - 2020-04-13
+
+(ws) add a --runtime option to ws cobra_subscribe to optionally limit how much time it will run
+
 ## [9.2.2] - 2020-04-04
 
 (third_party deps) fix #177, update bundled spdlog to 1.6.0
diff --git a/ixwebsocket/IXWebSocketVersion.h b/ixwebsocket/IXWebSocketVersion.h
index e49ce7c2..efb228bb 100644
--- a/ixwebsocket/IXWebSocketVersion.h
+++ b/ixwebsocket/IXWebSocketVersion.h
@@ -6,4 +6,4 @@
 
 #pragma once
 
-#define IX_WEBSOCKET_VERSION "9.2.2"
+#define IX_WEBSOCKET_VERSION "9.2.3"
diff --git a/ws/ws.cpp b/ws/ws.cpp
index 86f259ea..f728913e 100644
--- a/ws/ws.cpp
+++ b/ws/ws.cpp
@@ -115,6 +115,7 @@ int main(int argc, char** argv)
     uint32_t maxWaitBetweenReconnectionRetries;
     size_t maxQueueSize = 100;
     int pingIntervalSecs = 30;
+    int runtime = -1; // run indefinitely
 
     auto addTLSOptions = [&tlsOptions, &verifyNone](CLI::App* app) {
         app->add_option(
@@ -238,6 +239,7 @@ int main(int argc, char** argv)
     cobraSubscribeApp->add_option("--position", position, "Stream position");
     cobraSubscribeApp->add_flag("-q", quiet, "Quiet / only display stats");
     cobraSubscribeApp->add_flag("--fluentd", fluentd, "Write fluentd prefix");
+    cobraSubscribeApp->add_option("--runtime", runtime, "Runtime in seconds");
     addTLSOptions(cobraSubscribeApp);
     addCobraConfig(cobraSubscribeApp);
 
@@ -276,6 +278,7 @@ int main(int argc, char** argv)
     cobra2statsd->add_option("--queue_size",
                              maxQueueSize,
                              "Size of the queue to hold messages before they are sent to Sentry");
+    cobra2statsd->add_option("--runtime", runtime, "Runtime in seconds");
     addTLSOptions(cobra2statsd);
     addCobraConfig(cobra2statsd);
 
@@ -290,6 +293,7 @@ int main(int argc, char** argv)
     cobra2sentry->add_option("--pidfile", pidfile, "Pid file");
     cobra2sentry->add_option("--filter", filter, "Stream SQL Filter");
     cobra2sentry->add_option("--position", position, "Stream position");
+    cobra2sentry->add_option("--runtime", runtime, "Runtime in seconds");
     addTLSOptions(cobra2sentry);
     addCobraConfig(cobra2sentry);
 
@@ -445,7 +449,7 @@ int main(int argc, char** argv)
     }
     else if (app.got_subcommand("cobra_subscribe"))
     {
-        ret = ix::ws_cobra_subscribe_main(cobraConfig, channel, filter, position, quiet, fluentd);
+        ret = ix::ws_cobra_subscribe_main(cobraConfig, channel, filter, position, quiet, fluentd, runtime);
     }
     else if (app.got_subcommand("cobra_publish"))
     {
@@ -466,7 +470,6 @@ int main(int argc, char** argv)
         else
         {
             bool enableHeartbeat = true;
-            int runtime = -1; // run indefinitely
             ix::StatsdClient statsdClient(hostname, statsdPort, prefix);
 
             std::string errMsg;
@@ -496,7 +499,6 @@ int main(int argc, char** argv)
     else if (app.got_subcommand("cobra_to_sentry"))
     {
         bool enableHeartbeat = true;
-        int runtime = -1;
         ix::SentryClient sentryClient(dsn);
         sentryClient.setTLSOptions(tlsOptions);
 
diff --git a/ws/ws.h b/ws/ws.h
index 2c074ea7..b8039906 100644
--- a/ws/ws.h
+++ b/ws/ws.h
@@ -82,7 +82,8 @@ namespace ix
                                 const std::string& filter,
                                 const std::string& position,
                                 bool quiet,
-                                bool fluentd);
+                                bool fluentd,
+                                int runtime);
 
     int ws_cobra_publish_main(const ix::CobraConfig& appkey,
                               const std::string& channel,
diff --git a/ws/ws_cobra_subscribe.cpp b/ws/ws_cobra_subscribe.cpp
index 4291bb0c..aed7d67d 100644
--- a/ws/ws_cobra_subscribe.cpp
+++ b/ws/ws_cobra_subscribe.cpp
@@ -57,7 +57,8 @@ namespace ix
                                 const std::string& filter,
                                 const std::string& position,
                                 bool quiet,
-                                bool fluentd)
+                                bool fluentd,
+                                int runtime)
     {
         ix::CobraConnection conn;
         conn.configure(config);
@@ -65,11 +66,12 @@ namespace ix
 
         std::atomic<int> msgPerSeconds(0);
         std::atomic<int> msgCount(0);
+        std::atomic<bool> stop(false);
         std::atomic<bool> fatalCobraError(false);
         auto jsonWriter = makeStreamWriter();
 
-        auto timer = [&msgPerSeconds, &msgCount, &fatalCobraError] {
-            while (!fatalCobraError)
+        auto timer = [&msgPerSeconds, &msgCount, &stop] {
+            while (!stop)
             {
                 spdlog::info("#messages {} msg/s {}", msgCount, msgPerSeconds);
 
@@ -168,11 +170,30 @@ namespace ix
             }
         });
 
-        while (!fatalCobraError)
+        // Run forever
+        if (runtime == -1)
         {
-            auto duration = std::chrono::seconds(1);
-            std::this_thread::sleep_for(duration);
+            while (true)
+            {
+                auto duration = std::chrono::seconds(1);
+                std::this_thread::sleep_for(duration);
+
+                if (fatalCobraError) break;
+            }
         }
+        // Run for a duration, used by unittesting now
+        else
+        {
+            for (int i = 0 ; i < runtime; ++i)
+            {
+                auto duration = std::chrono::seconds(1);
+                std::this_thread::sleep_for(duration);
+
+                if (fatalCobraError) break;
+            }
+        }
+
+        stop = true;
 
         conn.disconnect();
         t.join();