diff --git a/src/Plugin/Field/FieldWidget/InlineEntityFormComplex.php b/src/Plugin/Field/FieldWidget/InlineEntityFormComplex.php
index 41434ce..1e06a01 100644
--- a/src/Plugin/Field/FieldWidget/InlineEntityFormComplex.php
+++ b/src/Plugin/Field/FieldWidget/InlineEntityFormComplex.php
@@ -193,7 +193,7 @@ class InlineEntityFormComplex extends InlineEntityFormBase implements ContainerF
 
     // Get the langcode of the parent entity.
     $parent_langcode = $items->getParent()->getValue()->language()->getId();
-    $target_langcode = $parent_langcode;
+    $target_langcode = $form_state->get('langcode') ?: $parent_langcode;
 
     // Determine the wrapper ID for the entire element.
     $wrapper = 'inline-entity-form-' . $this->getIefId();