diff --git a/core/modules/translation/translation.module b/core/modules/translation/translation.module
index cd9887f..077f38f 100644
--- a/core/modules/translation/translation.module
+++ b/core/modules/translation/translation.module
@@ -380,7 +380,7 @@ function translation_node_update(Node $node) {
  *
  * Ensures that duplicate translations can't be created for the same source.
  */
-function translation_node_validate(Node $node, $form) {
+function translation_node_validate(Node $node, $form, &$form_state) {
   // Only act on translatable nodes with a tnid or translation_source.
   $form_node = EntityFormController::getFormInstance($form_state)->getEntity();
   if (translation_supported_type($node->type) && (!empty($node->tnid) || !empty($form_node->translation_source->nid))) {