1 files changed, 1 insertions, 1 deletions
diff --git a/lib/docx/body-reader.js b/lib/docx/body-reader.js
index 4bd38a9..61b198b 100644
--- a/lib/docx/body-reader.js
+++ b/lib/docx/body-reader.js
@@ -83,7 +83,7 @@ function BodyReader(options) {
     function readUnderline(element) {
         if (element) {
             var value = element.attributes["w:val"];
-            return value !== "false" && value !== "0" && value !== "none";
+            return value !== undefined && value !== "false" && value !== "0" && value !== "none";
         } else {
             return false;
         }