diff --git a/web/skins/classic/views/filter.php b/web/skins/classic/views/filter.php
index de2016489..8445d2c12 100644
--- a/web/skins/classic/views/filter.php
+++ b/web/skins/classic/views/filter.php
@@ -130,8 +130,6 @@ $opTypes = array(
     '!~'  => translate('OpNotMatches'),
     '=[]' => translate('OpIn'),
     '![]' => translate('OpNotIn'),
-    'IN'  => translate('OpIn'),
-    'NOT IN' => translate('OpNotIn'),
     'IS'  => translate('OpIs'),
     'IS NOT'  => translate('OpIsNot'),
     'LIKE' => translate('OpLike'),