diff --git a/frontend/src/utils/service-actions.ts b/frontend/src/utils/service-actions.ts
index 0c96ed0..0fb2a32 100644
--- a/frontend/src/utils/service-actions.ts
+++ b/frontend/src/utils/service-actions.ts
@@ -6,7 +6,7 @@ export const onIssuesRefreshClick = (e: React.MouseEvent) => {
 	e.stopPropagation();
 	const rawInput = prompt("Force issues refresh (delimiters - space, comma, semicolon or tab)", "");
 	if (!rawInput) return;
-	const list = rawInput.split(" ,;\t").map(item => Number(item)).filter(item => Number.isFinite(item));
+	const list = rawInput.split(/[ ,;\t\n\r]/).map(item => Number(item)).filter(item => (Number.isFinite(item) && item > 0));
 	if (!list) return;
 	axios.post(`/redmine-event-emitter/append-issues`, list);
 };