diff --git a/web/firefox_print_service.js b/web/firefox_print_service.js
index 06560291c0ff3..37576f6601989 100644
--- a/web/firefox_print_service.js
+++ b/web/firefox_print_service.js
@@ -128,7 +128,7 @@ function FirefoxPrintService(
   this._printResolution = printResolution || 150;
   this._optionalContentConfigPromise =
     optionalContentConfigPromise || pdfDocument.getOptionalContentConfig();
-  this._optionalContentConfigPromise =
+  this._printAnnotationStoragePromise =
     printAnnotationStoragePromise || Promise.resolve();
 }