diff --git a/Admin/Install/Navigation.install.json b/Admin/Install/Navigation.install.json
index d143c61..a738ca1 100644
--- a/Admin/Install/Navigation.install.json
+++ b/Admin/Install/Navigation.install.json
@@ -5,7 +5,7 @@
         "type": 1,
         "subtype": 1,
         "name": "Calendar",
-        "uri": "/{/lang}/backend/calendar/dashboard?{?}",
+        "uri": "{/lang}/backend/calendar/dashboard?{?}",
         "target": "self",
         "icon": "fa fa-calendar",
         "order": 10,
@@ -20,7 +20,7 @@
         "type": 2,
         "subtype": 1,
         "name": "Calendar",
-        "uri": "/{/lang}/backend/calendar/dashboard?{?}",
+        "uri": "{/lang}/backend/calendar/dashboard?{?}",
         "target": "self",
         "icon": null,
         "order": 30,
diff --git a/Theme/Backend/calendar-dashboard.tpl.php b/Theme/Backend/calendar-dashboard.tpl.php
index 6f25727..64250b8 100644
--- a/Theme/Backend/calendar-dashboard.tpl.php
+++ b/Theme/Backend/calendar-dashboard.tpl.php
@@ -5,8 +5,8 @@ $calendar = $this->getData('calendar');
     <div class="col-xs-12 col-md-9">
         <div class="box wf-100">
             <ul class="btns floatLeft">
-                <li><a href="<?= $this->printHtml(\phpOMS\Uri\UriFactory::build('/{/lang}/backend/calendar/dashboard?date=' . $calendar->getDate()->createModify(0, -1, 0)->format('Y-m-d'))); ?>"><i class="fa fa-arrow-left"></i></a>
-                <li><a href="<?= $this->printHtml(\phpOMS\Uri\UriFactory::build('/{/lang}/backend/calendar/dashboard?date=' . $calendar->getDate()->createModify(0, 1, 0)->format('Y-m-d'))); ?>"><i class="fa fa-arrow-right"></i></a>
+                <li><a href="<?= $this->printHtml(\phpOMS\Uri\UriFactory::build('{/lang}/backend/calendar/dashboard?date=' . $calendar->getDate()->createModify(0, -1, 0)->format('Y-m-d'))); ?>"><i class="fa fa-arrow-left"></i></a>
+                <li><a href="<?= $this->printHtml(\phpOMS\Uri\UriFactory::build('{/lang}/backend/calendar/dashboard?date=' . $calendar->getDate()->createModify(0, 1, 0)->format('Y-m-d'))); ?>"><i class="fa fa-arrow-right"></i></a>
             </ul>
             <ul class="btns floatRight">
                 <li><a href=""><?= $this->getHtml('Day'); ?></a>