diff --git a/control/json/triggers/parameter.cpp b/control/json/triggers/parameter.cpp
new file mode 100644
index 0000000..3abe57c
--- /dev/null
+++ b/control/json/triggers/parameter.cpp
@@ -0,0 +1,48 @@
+/**
+ * Copyright © 2021 IBM Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "parameter.hpp"
+
+#include "../manager.hpp"
+
+#include <fmt/format.h>
+
+namespace phosphor::fan::control::json::trigger::parameter
+{
+
+using json = nlohmann::json;
+
+enableTrigger
+    triggerParameter(const json& jsonObj, const std::string& eventName,
+                     std::vector<std::unique_ptr<ActionBase>>& actions)
+{
+    if (!jsonObj.contains("parameter"))
+    {
+        auto msg = fmt::format(
+            "Event '{}' parameter trigger is missing 'parameter'", eventName);
+        log<level::ERR>(msg.c_str());
+        throw std::runtime_error(msg);
+    }
+
+    auto name = jsonObj["parameter"].get<std::string>();
+
+    return [name](const std::string& eventName, Manager* mgr,
+                  const std::vector<Group>& groups,
+                  std::vector<std::unique_ptr<ActionBase>>& actions) {
+        Manager::addParameterTrigger(name, actions);
+    };
+}
+
+} // namespace phosphor::fan::control::json::trigger::parameter