diff --git a/dbusSensor.hpp b/dbusSensor.hpp
index ba2e15e..bfda9b0 100644
--- a/dbusSensor.hpp
+++ b/dbusSensor.hpp
@@ -24,9 +24,7 @@
             bus,
             sdbusplus::bus::match::rules::propertiesChanged(path, sensorIntf),
             handleDbusSignal, ctx)
-    {
-        servName = getService(bus, path, sensorIntf);
-    }
+    {}
 
     /** @brief Get sensor value property from D-bus interface */
     double getSensorValue()
@@ -55,9 +53,9 @@
     /** @brief sdbusplus bus client connection. */
     sdbusplus::bus::bus& bus;
     /** @brief complete path for sensor */
-    std::string path;
+    std::string path{};
     /** @brief service name for the sensor daemon */
-    std::string servName;
+    std::string servName{};
     /** @brief signal for sensor value change */
     sdbusplus::bus::match_t signal;
 };
diff --git a/virtualSensor.cpp b/virtualSensor.cpp
index 33206e2..4ce18a9 100644
--- a/virtualSensor.cpp
+++ b/virtualSensor.cpp
@@ -331,13 +331,13 @@
 
                 if (!sensorType.empty() && !name.empty())
                 {
-                    auto objPath = sensorDbusPath + sensorType + "/" + name;
+                    auto path = sensorDbusPath + sensorType + "/" + name;
 
                     auto paramPtr =
-                        std::make_unique<SensorParam>(bus, objPath, this);
-                    std::string name = j["ParamName"];
-                    symbols.create_variable(name);
-                    paramMap.emplace(std::move(name), std::move(paramPtr));
+                        std::make_unique<SensorParam>(bus, path, this);
+                    std::string paramName = j["ParamName"];
+                    symbols.create_variable(paramName);
+                    paramMap.emplace(std::move(paramName), std::move(paramPtr));
                 }
             }
         }
@@ -646,7 +646,7 @@
 }
 
 /** @brief Parsing Virtual Sensor config JSON file  */
-Json VirtualSensors::parseConfigFile(const std::string configFile)
+Json VirtualSensors::parseConfigFile(const std::string& configFile)
 {
     std::ifstream jsonFile(configFile);
     if (!jsonFile.is_open())
diff --git a/virtualSensor.hpp b/virtualSensor.hpp
index cdf1d97..cff46f7 100644
--- a/virtualSensor.hpp
+++ b/virtualSensor.hpp
@@ -66,7 +66,7 @@
      * @param[in] path    - The Dbus path of sensor
      * @param[in] ctx     - sensor context for update
      */
-    SensorParam(sdbusplus::bus::bus& bus, std::string path, void* ctx) :
+    SensorParam(sdbusplus::bus::bus& bus, const std::string& path, void* ctx) :
         dbusSensor(std::make_unique<DbusSensor>(bus, path, ctx)),
         paramType(dbusParam)
     {}
@@ -268,7 +268,7 @@
     /** @brief Get virual sensor config from DBus**/
     ManagedObjectType getObjectsFromDBus();
     /** @brief Parsing virtual sensor config JSON file  */
-    Json parseConfigFile(const std::string configFile);
+    Json parseConfigFile(const std::string& configFile);
 
     /** @brief Matches for virtual sensors */
     std::vector<std::unique_ptr<sdbusplus::bus::match::match>> matches;