diff --git a/services/web/types/writefull/writefull-window.ts b/services/web/types/writefull/writefull-window.ts
index c14569693c..54174ce33c 100644
--- a/services/web/types/writefull/writefull-window.ts
+++ b/services/web/types/writefull/writefull-window.ts
@@ -1,4 +1,5 @@
 export interface WritefullWindow {
+  isLoaded?: boolean
   cm6?: any
   overleafUserId?: string
 }