diff --git a/src/Form/Type/CustomUrlType.php b/src/Form/Type/CustomUrlType.php
index 0e44f5e5..3e2ed05a 100644
--- a/src/Form/Type/CustomUrlType.php
+++ b/src/Form/Type/CustomUrlType.php
@@ -30,7 +30,7 @@ class CustomUrlType extends TranslatorAwareType
     /**
      * {@inheritdoc}
      */
-    public function buildForm(FormBuilderInterface $builder, array $options)
+    public function buildForm(FormBuilderInterface $builder, array $options): void
     {
         $builder
             ->add('title', TextType::class, [
diff --git a/src/Form/Type/LinkBlockType.php b/src/Form/Type/LinkBlockType.php
index 6b40ef30..9adf9cd3 100644
--- a/src/Form/Type/LinkBlockType.php
+++ b/src/Form/Type/LinkBlockType.php
@@ -104,7 +104,7 @@ public function __construct(
     /**
      * {@inheritdoc}
      */
-    public function buildForm(FormBuilderInterface $builder, array $options)
+    public function buildForm(FormBuilderInterface $builder, array $options): void
     {
         $builder
             ->add('id_link_block', HiddenType::class)
@@ -197,7 +197,7 @@ public function buildForm(FormBuilderInterface $builder, array $options)
     /**
      * {@inheritdoc}
      */
-    public function configureOptions(OptionsResolver $resolver)
+    public function configureOptions(OptionsResolver $resolver): void
     {
         $resolver->setDefaults([
             'label' => false,
diff --git a/src/Form/Type/TranslateCustomUrlType.php b/src/Form/Type/TranslateCustomUrlType.php
index d7fe163c..94bfb27c 100644
--- a/src/Form/Type/TranslateCustomUrlType.php
+++ b/src/Form/Type/TranslateCustomUrlType.php
@@ -31,7 +31,7 @@ class TranslateCustomUrlType extends TranslatableType
     /**
      * {@inheritdoc}
      */
-    public function buildForm(FormBuilderInterface $builder, array $options)
+    public function buildForm(FormBuilderInterface $builder, array $options): void
     {
         foreach ($options['locales'] as $locale) {
             $localeOptions = $options['options'];