diff --git a/src/persistence/settingsserializer.h b/src/persistence/settingsserializer.h
index 5ebe50eca..7e7ee387a 100644
--- a/src/persistence/settingsserializer.h
+++ b/src/persistence/settingsserializer.h
@@ -23,6 +23,7 @@
 #include <QSettings>
 #include <QVector>
 #include <QString>
+#include <QDataStream>
 
 /// Serializes a QSettings's data in an (optionally) encrypted binary format
 /// SettingsSerializer can detect regular .ini files and serialized ones,