diff --git a/modules/travel/front/extra-community/index.html b/modules/travel/front/extra-community/index.html
index 3e5d5f224..ee8dcdf98 100644
--- a/modules/travel/front/extra-community/index.html
+++ b/modules/travel/front/extra-community/index.html
@@ -27,7 +27,7 @@
             <section>
                 <vn-tool-bar class="vn-mb-md">
                     <vn-button
-                        disabled="!travels"
+                        disabled="!travels.length"
                         icon="picture_as_pdf"
                         ng-click="$ctrl.showReport()"
                         vn-tooltip="Open as PDF">