1 files changed, 4 insertions, 1 deletions
diff --git a/src/undo.h b/src/undo.h
index 459fdb0..476ca45 100644
--- a/src/undo.h
+++ b/src/undo.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012-2025 Robin Haberkorn
+ * Copyright (C) 2012-2026 Robin Haberkorn
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -182,6 +182,9 @@ TECO_DECLARE_UNDO_SCALAR(guint);
 TECO_DECLARE_UNDO_SCALAR(gsize);
 #define teco_undo_gsize(VAR) (*teco_undo_object_gsize_push(&(VAR)))
 
+TECO_DECLARE_UNDO_SCALAR(gssize);
+#define teco_undo_gssize(VAR) (*teco_undo_object_gssize_push(&(VAR)))
+
 TECO_DECLARE_UNDO_SCALAR(teco_int_t);
 #define teco_undo_int(VAR) (*teco_undo_object_teco_int_t_push(&(VAR)))