diff --git a/web/pdf_viewer.js b/web/pdf_viewer.js
index c9f7d269f..cec51cf35 100644
--- a/web/pdf_viewer.js
+++ b/web/pdf_viewer.js
@@ -470,6 +470,10 @@ var PDFViewer = (function pdfViewer() {
      */
     scrollPageIntoView: function PDFViewer_scrollPageIntoView(pageNumber,
                                                               dest) {
+      if (!this.pdfDocument) {
+        return;
+      }
+      
       var pageView = this._pages[pageNumber - 1];
 
       if (this.isInPresentationMode) {