diff --git a/sources/model.h b/sources/model.h
index 6363c32..dc10a8c 100644
--- a/sources/model.h
+++ b/sources/model.h
@@ -27,6 +27,7 @@ along with qpdfview. If not, see .
#include
#include
#include
+#include
class QAbstractItemModel;
class QColor;