diff --git a/src/store/proxies.tsx b/src/store/proxies.tsx
index 71d2325..e15d29a 100644
--- a/src/store/proxies.tsx
+++ b/src/store/proxies.tsx
@@ -112,7 +112,7 @@ export function fetchProxies(apiConfig: APIConfig) {
       const name = proxyNames[i];
       const { history } = proxies[name] || { history: [] };
       const h = history[history.length - 1];
-      if (h && h.delay) {
+      if (h && typeof h.delay === 'number') {
         delayNext[name] = { number: h.delay };
       }
     }