diff --git a/src/plugins/qmlprofiler/qmlevent.h b/src/plugins/qmlprofiler/qmlevent.h
index 456eb352838..d3fd49e8e90 100644
--- a/src/plugins/qmlprofiler/qmlevent.h
+++ b/src/plugins/qmlprofiler/qmlevent.h
@@ -29,6 +29,7 @@
 #include <QString>
 #include <QByteArray>
 #include <QVarLengthArray>
+#include <QMetaType>
 
 #include <initializer_list>
 #include <type_traits>
@@ -295,6 +296,8 @@ private:
 
 } // namespace QmlProfiler
 
+Q_DECLARE_METATYPE(QmlProfiler::QmlEvent)
+
 QT_BEGIN_NAMESPACE
 Q_DECLARE_TYPEINFO(QmlProfiler::QmlEvent, Q_MOVABLE_TYPE);
 QT_END_NAMESPACE
diff --git a/src/plugins/qmlprofiler/qmleventtype.h b/src/plugins/qmlprofiler/qmleventtype.h
index 8b8eaa23dc0..cf559b24475 100644
--- a/src/plugins/qmlprofiler/qmleventtype.h
+++ b/src/plugins/qmlprofiler/qmleventtype.h
@@ -27,6 +27,7 @@
 #include "qmlprofilereventlocation.h"
 #include "qmlprofilereventtypes.h"
 #include <QString>
+#include <QMetaType>
 
 namespace QmlProfiler {
 
@@ -48,3 +49,5 @@ struct QmlEventType {
 };
 
 } // namespace QmlProfiler
+
+Q_DECLARE_METATYPE(QmlProfiler::QmlEventType)
diff --git a/src/plugins/qmlprofiler/qmlnote.h b/src/plugins/qmlprofiler/qmlnote.h
index cdfd768668b..63d26a6c97d 100644
--- a/src/plugins/qmlprofiler/qmlnote.h
+++ b/src/plugins/qmlprofiler/qmlnote.h
@@ -25,6 +25,7 @@
 #pragma once
 
 #include <QString>
+#include <QMetaType>
 
 namespace QmlProfiler {
 
@@ -41,3 +42,5 @@ struct QmlNote {
 };
 
 } // namespace QmlProfiler
+
+Q_DECLARE_METATYPE(QmlProfiler::QmlNote)
diff --git a/src/plugins/qmlprofiler/qmltypedevent.h b/src/plugins/qmlprofiler/qmltypedevent.h
index 9a3375f792c..aff8ca89d5b 100644
--- a/src/plugins/qmlprofiler/qmltypedevent.h
+++ b/src/plugins/qmlprofiler/qmltypedevent.h
@@ -40,3 +40,5 @@ struct QmlTypedEvent
 QDataStream &operator>>(QDataStream &stream, QmlTypedEvent &event);
 
 } // namespace QmlProfiler
+
+Q_DECLARE_METATYPE(QmlProfiler::QmlTypedEvent)