diff --git a/web/skins/classic/views/none.php b/web/skins/classic/views/none.php
index 1213b44d5..7e2702399 100644
--- a/web/skins/classic/views/none.php
+++ b/web/skins/classic/views/none.php
@@ -18,6 +18,7 @@
 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 //
 
+  global $cspNonce;
 $skinJsPhpFile = getSkinFile('js/skin.js.php');
 $skinJsFile = getSkinFile('js/skin.js');
 ?>