diff --git a/extensions/b2g/viewer.html b/extensions/b2g/viewer.html
index 27a1ffbe0..7bf740500 100644
--- a/extensions/b2g/viewer.html
+++ b/extensions/b2g/viewer.html
@@ -22,8 +22,8 @@ limitations under the License.
 
 
     <link rel="stylesheet" href="viewer.css"/>
-    <script src="./bower_components/pdfjs_dist/build/pdf.js"></script>
-    <script src="./bower_components/pdfjs_dist/web/pdf_viewer.js"></script>
+    <script src="./bower_components/pdfjs-dist/build/pdf.js"></script>
+    <script src="./bower_components/pdfjs-dist/web/pdf_viewer.js"></script>
     <script src="/shared/js/async_storage.js"></script>
 
     <script src="viewer.js"></script>