diff --git a/plugins/enigma/lib/enigma_ui.php b/plugins/enigma/lib/enigma_ui.php
index 1eea580cace..c31311b4945 100644
--- a/plugins/enigma/lib/enigma_ui.php
+++ b/plugins/enigma/lib/enigma_ui.php
@@ -1025,7 +1025,7 @@ public function status_message($p)
                             $this->enigma->gettext('signokey')));
                     }
                 }
-            } elseif ($sig && $sig->getCode() == enigma_error::KEYNOTFOUND) {
+            } elseif ($sig->getCode() == enigma_error::KEYNOTFOUND) {
                 $attrib['class'] = 'boxwarning enigmawarning signed';
                 $msg = rcube::Q(str_replace('$keyid', enigma_key::format_id($sig->getData('id')),
                     $this->enigma->gettext('signokey')));