diff --git a/src/structs.h b/src/structs.h
index 24d819b..12a8a43 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1261,6 +1261,8 @@
 {
     int		pt_refcount;	/* reference count */
     char_u	*pt_name;	/* function name */
+    int		pt_auto;	/* when TRUE the partial was created for using
+				   dict.member in handle_subscript() */
     int		pt_argc;	/* number of arguments */
     typval_T	*pt_argv;	/* arguments in allocated array */
     dict_T	*pt_dict;	/* dict for "self" */