diff --git a/conditional_fields.module b/conditional_fields.module
index 5939849..284a7c8 100644
--- a/conditional_fields.module
+++ b/conditional_fields.module
@@ -1058,7 +1058,8 @@ function conditional_fields_evaluate_dependency($context, $values, $options) {
       // Compare arrays recursively ignoring keys, since multiple select widgets
       // values have numeric keys in form format and string keys in storage
       // format.
-      return array_values($dependency_values) == array_values($values);
+      $diff = array_diff(array_filter($dependency_values), $values);
+      return empty($diff);
     }
 
     // $values, when viewing fields, may contain all sort of additional