diff --git a/src/ExternalSensor.cpp b/src/ExternalSensor.cpp
index cc341f8..cc9e7c5 100644
--- a/src/ExternalSensor.cpp
+++ b/src/ExternalSensor.cpp
@@ -28,8 +28,7 @@
     double minReading, double timeoutSecs, const PowerState& powerState) :
     Sensor(escapeName(sensorName), std::move(thresholdsIn), sensorConfiguration,
            objectType, true, true, maxReading, minReading, conn, powerState),
-    std::enable_shared_from_this<ExternalSensor>(), objServer(objectServer),
-    writeLast(std::chrono::steady_clock::now()),
+    objServer(objectServer), writeLast(std::chrono::steady_clock::now()),
     writeTimeout(
         std::chrono::duration_cast<std::chrono::steady_clock::duration>(
             std::chrono::duration<double>(timeoutSecs))),