diff --git a/auto_entitylabel.module b/auto_entitylabel.module
index 880817e..6e664ba 100644
--- a/auto_entitylabel.module
+++ b/auto_entitylabel.module
@@ -65,43 +65,63 @@ function auto_entitylabel_entity_type_alter(array &$entity_types) {
  * Implements hook_form_alter().
  */
 function auto_entitylabel_form_alter(&$form, FormStateInterface $form_state) {
-  if (isset($form['#entity_builders']) && empty($form['#auto_entitylabel_processed'])) {
+  if (isset($form['#entity_builders'])) {
+    $entity = $form_state->getFormObject()->getEntity();
+    if ($entity instanceof ContentEntityInterface) {
+      auto_entitylabel_prepare_entityform($form, $entity);
+    }
+  }
+}
+
+/**
+ * Implements hook_inline_entity_form_entity_form_alter().
+ */
+function auto_entitylabel_inline_entity_form_entity_form_alter(&$form, &$form_state) {
+  $entity = $form['#entity'];
+  auto_entitylabel_prepare_entityform($form, $entity);
+}
+
+/**
+ * Prepares the label replacement in the entity form.
+ *
+ * @param array $form
+ *   Form array.
+ * @param \Drupal\Core\Entity\ContentEntityInterface $entity
+ *   The entity which title will be replaced.
+ */
+function auto_entitylabel_prepare_entityform(&$form, ContentEntityInterface $entity) {
+  if (empty($form['#auto_entitylabel_processed'])) {
     $decorator = \Drupal::service('auto_entitylabel.entity_decorator');
-    $form_entity = $form_state->getFormObject()->getEntity();
-    if ($form_entity instanceof ContentEntityInterface) {
-      /** @var \Drupal\auto_entitylabel\AutoEntityLabelManager $entity */
-      $entity = $decorator->decorate($form_state->getFormObject()->getEntity());
-
-      if ($entity instanceof AutoEntityLabelManagerInterface) {
-        if ($entity->hasAutoLabel()) {
-          $label = $entity->getLabelName();
-          $widget = &$form[$label]['widget'][0];
-          // Hide the label field. It will be automatically generated in
-          // hook_entity_presave().
-          $widget['value']['#type'] = 'hidden';
-          $widget['value']['#required'] = FALSE;
-          if (empty($widget['value']['#default_value'])) {
-            $widget['value']['#default_value'] = '%AutoEntityLabel%';
-          }
-        }
-        else {
-          if ($entity->hasOptionalAutoLabel()) {
-            $label = $entity->getLabelName();
-            $widget = &$form[$label]['widget'][0];
-            // Allow label field to be empty. It will be automatically generated
-            // in hook_entity_presave().
-            $widget['value']['#required'] = FALSE;
-          }
-          $label = $entity->getLabelName();
-          $widget = &$form[$label]['widget'][0];
-          // Allow label field to be empty. It will be automatically generated
-          // in hook_entity_presave().
-          $widget['value']['#required'] = FALSE;
-        }
-      }
+    /** @var \Drupal\auto_entitylabel\AutoEntityLabelManager $entity */
+    $entity = $decorator->decorate($entity);
 
-      $form['#auto_entitylabel_processed'] = TRUE;
+    if ($entity->hasAutoLabel()) {
+      $label = $entity->getLabelName();
+      $widget = &$form[$label]['widget'][0];
+      // Hide the label field. It will be automatically generated in
+      // hook_entity_presave().
+      $widget['value']['#type'] = 'hidden';
+      $widget['value']['#required'] = FALSE;
+      if (empty($widget['value']['#default_value'])) {
+        $widget['value']['#default_value'] = '%AutoEntityLabel%';
+      }
     }
+    else {
+      if ($entity->hasOptionalAutoLabel()) {
+        $label = $entity->getLabelName();
+        $widget = &$form[$label]['widget'][0];
+        // Allow label field to be empty. It will be automatically generated
+        // in hook_entity_presave().
+        $widget['value']['#required'] = FALSE;
+      }
+      $label = $entity->getLabelName();
+      $widget = &$form[$label]['widget'][0];
+      // Allow label field to be empty. It will be automatically generated
+      // in hook_entity_presave().
+      $widget['value']['#required'] = FALSE;
+    }
+
+    $form['#auto_entitylabel_processed'] = TRUE;
   }
 }