diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index dbab4e2..cba3da5 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -9070,7 +9070,7 @@
     win_T	*curwin_save = curwin;
 
     g_do_tagpreview = p_pvh;
-    prepare_tagpreview();
+    prepare_tagpreview(TRUE);
     keep_help_flag = curwin_save->w_buffer->b_help;
     do_exedit(eap, NULL);
     keep_help_flag = FALSE;