1 files changed, 1 insertions, 0 deletions
diff --git a/src/zenity.h b/src/zenity.h
index b04ff5bb..36cf52e2 100644
--- a/src/zenity.h
+++ b/src/zenity.h
@@ -92,6 +92,7 @@ typedef struct {
   gboolean      radiobox;
   gchar        *separator;
   gboolean      editable;
+  gchar	       *print_column;
   const gchar **data;
 } ZenityTreeData;