diff --git a/src/Plugin/Field/FieldWidget/EntityReferenceViewsOptionsSelectWidget.php b/src/Plugin/Field/FieldWidget/EntityReferenceViewsOptionsSelectWidget.php
index ca46a55..0ef109f 100644
--- a/src/Plugin/Field/FieldWidget/EntityReferenceViewsOptionsSelectWidget.php
+++ b/src/Plugin/Field/FieldWidget/EntityReferenceViewsOptionsSelectWidget.php
@@ -127,7 +127,7 @@ class EntityReferenceViewsOptionsSelectWidget extends OptionsWidgetBase implemen
       '#options' => $options,
       '#default_value' => $selected,
       // Do not display a 'multiple' select box if there is only one option.
-      '#multiple' => $this->multiple && count($this->options) > 1,
+      '#multiple' => $this->multiple,
     ];
 
     return $element;