diff --git a/interface/src/api/mqtt.ts b/interface/src/api/mqtt.ts
index 31a68dc88..36cf6e0bb 100644
--- a/interface/src/api/mqtt.ts
+++ b/interface/src/api/mqtt.ts
@@ -11,6 +11,6 @@ export function readMqttSettings(): AxiosPromise<MqttSettings> {
   return AXIOS.get('/mqttSettings');
 }
 
-export function updateMqttSettings(ntpSettings: MqttSettings): AxiosPromise<MqttSettings> {
-  return AXIOS.post('/mqttSettings', ntpSettings);
+export function updateMqttSettings(mqttSettings: MqttSettings): AxiosPromise<MqttSettings> {
+  return AXIOS.post('/mqttSettings', mqttSettings);
 }
diff --git a/src/mqtt.cpp b/src/mqtt.cpp
index 251dafdd4..7571f7def 100644
--- a/src/mqtt.cpp
+++ b/src/mqtt.cpp
@@ -912,6 +912,7 @@ void Mqtt::publish_ha_sensor_config(DeviceValue & dv, const std::string & model,
         dev_json["mf"]         = brand;
         dev_json["mdl"]        = model;
         dev_json["via_device"] = "ems-esp";
+        free(cap_name);
     }
 
     // calculate the min and max
diff --git a/src/telegram.h b/src/telegram.h
index cafa60b42..710558f57 100644
--- a/src/telegram.h
+++ b/src/telegram.h
@@ -250,11 +250,7 @@ class RxService : public EMSbus {
         if (telegram_error_count_ == 0) {
             return 100; // all good, 100%
         }
-        if (telegram_error_count_ >= telegram_count_) {
-            return 100;
-        }
-        uint8_t q = ((float)telegram_error_count_ / telegram_count_ * 100);
-
+        uint8_t q = (telegram_error_count_ * 100 / (telegram_count_ + telegram_error_count_));
         return (q <= EMS_BUS_QUALITY_RX_THRESHOLD ? 100 : 100 - q);
     }