diff --git a/web/viewer.js b/web/viewer.js
index ac3fbff0c..9f8b772ab 100644
--- a/web/viewer.js
+++ b/web/viewer.js
@@ -353,8 +353,14 @@ var PDFView = {
 
     if (moreInfo) {
       errorMoreInfo.value += 'Message: ' + moreInfo.message;
-      if (moreInfo.stack)
+      if (moreInfo.stack) {
         errorMoreInfo.value += '\n' + 'Stack: ' + moreInfo.stack;
+      } else {
+        if (moreInfo.filename)
+          errorMoreInfo.value += '\n' + 'File: ' + moreInfo.filename;
+        if (moreInfo.filename)
+          errorMoreInfo.value += '\n' + 'Line: ' + moreInfo.lineNumber;
+      }
     }
     errorMoreInfo.rows = errorMoreInfo.value.split('\n').length - 1;
   },