diff --git a/src/timeline/PresenceEmitter.h b/src/timeline/PresenceEmitter.h
index 09ad1301..64859669 100644
--- a/src/timeline/PresenceEmitter.h
+++ b/src/timeline/PresenceEmitter.h
@@ -20,7 +20,7 @@ class PresenceEmitter final : public QObject
     QML_SINGLETON
 
 public:
-    PresenceEmitter(QObject *p = nullptr)
+    PresenceEmitter(QObject *p)
       : QObject(p)
     {
         instance_ = this;