diff --git a/www/core/directives/formattext.js b/www/core/directives/formattext.js
index b74e2960da4..e014deadb6d 100644
--- a/www/core/directives/formattext.js
+++ b/www/core/directives/formattext.js
@@ -412,7 +412,7 @@ angular.module('mm.core')
 
         if (el.src && canTreatVimeo) {
             // Check if it's a Vimeo video. If it is, use the wsplayer script instead to make restricted videos work.
-            var matches = el.src.match(/https?:\/\/player\.vimeo\.com\/video\/([^\/]*)/);
+            var matches = el.src.match(/https?:\/\/player\.vimeo\.com\/video\/([0-9]+)/);
             if (matches && matches[1]) {
                 var newUrl = $mmFS.concatenatePaths(site.getURL(), '/media/player/vimeo/wsplayer.php?video=') +
                         matches[1] + '&token=' + site.getToken();