diff --git a/common/yacreader_global.cpp b/common/yacreader_global.cpp
index 8c4d4e13..53d2bf75 100644
--- a/common/yacreader_global.cpp
+++ b/common/yacreader_global.cpp
@@ -88,3 +88,19 @@ QString YACReader::labelColorToRGBString(LabelColors color)
 
     return "";
 }
+
+QDataStream &YACReader::operator<<(QDataStream &stream, const OpenComicSource &source)
+{
+    stream << (quint8)source.source;
+    stream << source.sourceId;
+    return stream;
+}
+
+QDataStream &YACReader::operator>>(QDataStream &stream, OpenComicSource &source)
+{
+    quint8 sourceRaw;
+    stream >> sourceRaw;
+    source.source = (OpenComicSource::Source)sourceRaw;
+    stream >> source.sourceId;
+    return stream;
+}
diff --git a/common/yacreader_global.h b/common/yacreader_global.h
index e35dca6e..6b2ba727 100644
--- a/common/yacreader_global.h
+++ b/common/yacreader_global.h
@@ -2,6 +2,7 @@
 #define __YACREADER_GLOBAL_H
 
 #include <QStandardPaths>
+#include <QDataStream>
 
 #define VERSION "9.8.0"
 
@@ -54,9 +55,26 @@ enum LabelColors {
     YDark
 };
 
+struct OpenComicSource {
+    enum Source {
+        Folder = 0,
+        ReadingList
+    };
+
+    Source source;
+    qulonglong sourceId;
+};
+
+QDataStream &operator<<(QDataStream &stream, const OpenComicSource &source);
+QDataStream &operator>>(QDataStream &stream, OpenComicSource &source);
+
 QString getSettingsPath();
 QString colorToName(LabelColors colors);
 QString labelColorToRGBString(LabelColors color);
 
 }
+
+Q_DECLARE_METATYPE(YACReader::OpenComicSource::Source)
+Q_DECLARE_METATYPE(YACReader::OpenComicSource)
+
 #endif