diff --git a/etemplate/js/nextmatch_action.js b/etemplate/js/nextmatch_action.js
index 5a3132e6a1..97d5a7da1e 100644
--- a/etemplate/js/nextmatch_action.js
+++ b/etemplate/js/nextmatch_action.js
@@ -155,7 +155,7 @@ function nm_action(_action, _senders)
 			// let user confirm select-all
 			if (select_all && select_all.checked)
 			{
-				if (!confirm(confirm_msg+"\n\n"+select_all.hint)) return;
+				if (!confirm((confirm_msg ? confirm_msg : _action.caption)+"\n\n"+select_all.hint)) return;
 			}
 			var checkboxes = egw_actionManager.getActionsByAttr("checkbox", true);
 			var checkboxes_elem = document.getElementById(egw_actionManager.etemplate_var_prefix+'[nm][checkboxes]');