1 files changed, 1 insertions, 0 deletions
diff --git a/src/zenity.h b/src/zenity.h
index 0e1dba1b..b224abd9 100644
--- a/src/zenity.h
+++ b/src/zenity.h
@@ -97,6 +97,7 @@ typedef struct {
   gboolean      multi;
   gboolean      editable;
   gchar	       *print_column;
+  gchar	       *hide_column;
   const gchar **data;
 } ZenityTreeData;