diff --git a/library/Class/UserAgent.php b/library/Class/UserAgent.php
index 4c71d7ea5ed2b0098efed98f059b79ed6721a846..f8182b0a5090af408d639c98a8f16fbd724ccb10 100644
--- a/library/Class/UserAgent.php
+++ b/library/Class/UserAgent.php
@@ -32,7 +32,7 @@ class Class_UserAgent {
 
 
   public function isBot() {
-    return 0 !== preg_match('/(bot\/|sistrix|voilabot|slurp|mauibot|ahrefsbot|semrushbot)/i',
+    return 0 !== preg_match('/(bot\/|sistrix|voilabot|slurp|mauibot|ahrefsbot|semrushbot|qwant|bing|linguee)/i',
                             $this->_user_agent_string);
   }