diff --git a/web/alt_text_manager.js b/web/alt_text_manager.js
index 63a88a146..fc3b020ee 100644
--- a/web/alt_text_manager.js
+++ b/web/alt_text_manager.js
@@ -152,7 +152,7 @@ class AltTextManager {
   }
 
   #finish() {
-    if (this.#dialog) {
+    if (this.#overlayManager.active === this.#dialog) {
       this.#overlayManager.close(this.#dialog);
     }
   }