diff --git a/src/plugins/macros/macroevent.cpp b/src/plugins/macros/macroevent.cpp
index 9b372987985..40dfd3de7fa 100644
--- a/src/plugins/macros/macroevent.cpp
+++ b/src/plugins/macros/macroevent.cpp
@@ -75,7 +75,7 @@ void MacroEvent::load(QDataStream &stream)
 void MacroEvent::save(QDataStream &stream) const
 {
     stream << m_id.name();
-    stream << m_values.count();
+    stream << int(m_values.count());
     for (auto i = m_values.cbegin(), end = m_values.cend(); i != end; ++i)
         stream << i.key() << i.value();
 }