diff --git a/src/stores/gameActive.js b/src/stores/gameActive.js
index c50912a..9e48f7d 100644
--- a/src/stores/gameActive.js
+++ b/src/stores/gameActive.js
@@ -6,6 +6,6 @@ gameActive.subscribe(t => {
     localStorage.setItem("game-active", t ? 1 : 0);
 });
 const startPage = localStorage.getItem("dialog-page");
-const startPageIndex = Number(startPage) !== NaN ? Number(startPage) : dialog.findIndex(t => t.name === startPage);
+const startPageIndex = !isNaN(Number(startPage)) ? Number(startPage) : dialog.findIndex(t => t.name === startPage);
 export const page = writable(startPageIndex !== -1 ? startPageIndex : 0);
 export const menuActive = writable(false);
\ No newline at end of file