diff --git a/libnymea-mqtt/mqttclient.h b/libnymea-mqtt/mqttclient.h
index d1dc21a..4e83c44 100644
--- a/libnymea-mqtt/mqttclient.h
+++ b/libnymea-mqtt/mqttclient.h
@@ -78,7 +78,7 @@ public:
 
 public slots:
     quint16 subscribe(const MqttSubscription &subscription);
-    quint16 subscribe(const QString &topciFilter, Mqtt::QoS qos = Mqtt::QoS0);
+    quint16 subscribe(const QString &topicFilter, Mqtt::QoS qos = Mqtt::QoS0);
     quint16 subscribe(const MqttSubscriptions &subscriptions);
 
     quint16 unsubscribe(const MqttSubscription &subscription);
diff --git a/libnymea-mqtt/mqttserver.h b/libnymea-mqtt/mqttserver.h
index 7d0a67b..7ba9fcb 100644
--- a/libnymea-mqtt/mqttserver.h
+++ b/libnymea-mqtt/mqttserver.h
@@ -68,7 +68,7 @@ public:
     QStringList clients() const;
     void disconnectClient(const QString &clientId);
 
-    // allows publishing from the server, including topcis starting with $
+    // allows publishing from the server, including topics starting with $
     QHash<QString, quint16> publish(const QString &topic, const QByteArray &payload = QByteArray());
 
 signals:
@@ -78,7 +78,7 @@ signals:
     void clientDisconnected(const QString &clientId);
     // emitted whenever a client has been seen, that is, a control message or a keep alive message has been received.
     void clientAlive(const QString &clientId);
-    // emitted whenever a client subscribes, a client can also subscribe to topics starting with $ but those won't be relayed from other clients. Only internal server publishes to $ topcis will be sent to subscribed clients.
+    // emitted whenever a client subscribes, a client can also subscribe to topics starting with $ but those won't be relayed from other clients. Only internal server publishes to $ topics will be sent to subscribed clients.
     void clientSubscribed(const QString &clientId, const QString &topicFilter, Mqtt::QoS requestedQoS);
     // emitted whenever a client unsubscribes from a topic
     void clientUnsubscribed(const QString &clientId, const QString &topicFiltr);