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-rw-r--r--widgets/misc/e-attachment-tree-view.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/widgets/misc/e-attachment-tree-view.c b/widgets/misc/e-attachment-tree-view.c
index c404920d33..a2210db5a6 100644
--- a/widgets/misc/e-attachment-tree-view.c
+++ b/widgets/misc/e-attachment-tree-view.c
@@ -22,6 +22,7 @@
#include "e-attachment-tree-view.h"
#include <glib/gi18n.h>
+#include <e-util/e-extensible.h>
#include "e-attachment.h"
#include "e-attachment-store.h"
@@ -51,7 +52,9 @@ G_DEFINE_TYPE_WITH_CODE (
GTK_TYPE_TREE_VIEW,
G_IMPLEMENT_INTERFACE (
E_TYPE_ATTACHMENT_VIEW,
- e_attachment_tree_view_interface_init))
+ e_attachment_tree_view_interface_init)
+ G_IMPLEMENT_INTERFACE (
+ E_TYPE_EXTENSIBLE, NULL))
static void
attachment_tree_view_set_property (GObject *object,