diff --git a/src/libtomahawk/query.h b/src/libtomahawk/query.h
index 724e53529..de0b946dc 100644
--- a/src/libtomahawk/query.h
+++ b/src/libtomahawk/query.h
@@ -156,7 +156,7 @@ public slots:
     // resolve if not solved()
     void onResolverAdded();
     void onResolverRemoved();
-    
+
 private slots:
     void onResultStatusChanged();
     void refreshResults();
@@ -219,4 +219,6 @@ private:
 
 }; //ns
 
+Q_DECLARE_METATYPE(Tomahawk::query_ptr);
+
 #endif // QUERY_H