diff --git a/src/core/messagesmodel.h b/src/core/messagesmodel.h
index ff3b98d88..823cdb901 100755
--- a/src/core/messagesmodel.h
+++ b/src/core/messagesmodel.h
@@ -28,6 +28,11 @@
 #include <QDateTime>
 
 
+struct Enclosure {
+    QString m_mimeType;
+    QString m_url;
+};
+
 // Represents single enclosure.
 class Enclosures {
   public: