diff --git a/src/Plugin/migrate/source/d7/Vote.php b/src/Plugin/migrate/source/d7/Vote.php
index d00eae4..299158d 100644
--- a/src/Plugin/migrate/source/d7/Vote.php
+++ b/src/Plugin/migrate/source/d7/Vote.php
@@ -22,8 +22,8 @@ class Vote extends DrupalSqlBase {
       ->fields('v');
     foreach (['entity_type', 'value_type', 'tag'] as $db_field_name) {
       if (!empty($this->configuration[$db_field_name])) {
-        $operator = is_array($this->configuration[$db_field_name]) ? 'IN' : '=';
-        $query->condition("v.$db_field_name", $this->configuration[$db_field_name], $operator);
+        $value = (array) $this->configuration[$db_field_name];
+        $query->condition("v.$db_field_name", $value, 'IN');
       }
     }
     return $query;