diff --git a/src/plugins/esp32/EnvironmentalMeasurementPlugin.h b/src/plugins/esp32/EnvironmentalMeasurementPlugin.h
index 8184f6cb3..19d73914b 100644
--- a/src/plugins/esp32/EnvironmentalMeasurementPlugin.h
+++ b/src/plugins/esp32/EnvironmentalMeasurementPlugin.h
@@ -27,7 +27,12 @@ class EnvironmentalMeasurementPluginRadio : public ProtobufPlugin<EnvironmentalM
     /** Constructor
      * name is for debugging output
      */
-    EnvironmentalMeasurementPluginRadio() : ProtobufPlugin("EnvironmentalMeasurement", PortNum_ENVIRONMENTAL_MEASUREMENT_APP, &EnvironmentalMeasurement_msg) {}
+    EnvironmentalMeasurementPluginRadio() : ProtobufPlugin("EnvironmentalMeasurement", PortNum_ENVIRONMENTAL_MEASUREMENT_APP, &EnvironmentalMeasurement_msg) {
+      lastMeasurement.barometric_pressure = nanf("");
+      lastMeasurement.relative_humidity =  nanf("");
+      lastMeasurement.temperature =  nanf("");
+      lastSender = "N/A";
+    }
 
     /**
      * Send our EnvironmentalMeasurement into the mesh