diff --git a/mailhandler_d8_demo/mailhandler_d8_demo.module b/mailhandler_d8_demo/mailhandler_d8_demo.module
index 4f76461..1d5046c 100644
--- a/mailhandler_d8_demo/mailhandler_d8_demo.module
+++ b/mailhandler_d8_demo/mailhandler_d8_demo.module
@@ -6,14 +6,16 @@
 use Drupal\Core\Form\FormStateInterface;
 
 /**
- * Implements hook_form_FORM_ID_alter().
+ * Implements hook_form_alter().
  */
-function mailhandler_d8_demo_form_inmail_demo_paste_alter(&$form, FormStateInterface $form_state) {
-  $inmail_demo_examples = $form['example']['#options'];
+function mailhandler_d8_demo_form_alter(&$form, FormStateInterface $form_state, $form_id) {
+  if ($form_id == 'inmail_demo.paste') {
+    $inmail_demo_examples = $form['example']['#options'];
 
-  $directory = drupal_get_path('module', 'mailhandler_d8_demo') . '/eml/';
-  $examples = array_keys(file_scan_directory($directory, '/.*/'));
-  $mailhandler_demo_examples = array_map('basename', array_combine($examples, $examples));
+    $directory = drupal_get_path('module', 'mailhandler_d8_demo') . '/eml/';
+    $examples = array_keys(file_scan_directory($directory, '/.*/'));
+    $mailhandler_demo_examples = array_map('basename', array_combine($examples, $examples));
 
-  $form['example']['#options'] = array_merge($inmail_demo_examples, $mailhandler_demo_examples);
+    $form['example']['#options'] = array_merge($inmail_demo_examples, $mailhandler_demo_examples);
+  }
 }