diff --git a/src/Form/AddressType.php b/src/Form/AddressType.php
index e7d4f69..da27a71 100644
--- a/src/Form/AddressType.php
+++ b/src/Form/AddressType.php
@@ -20,16 +20,25 @@ class AddressType extends AbstractType
                 'label' => 'Straße',
                 'required' => $options['required'],
                 'sanitize_html' => true,
+                'attr' => [
+                    'autocomplete' => 'off',
+                ],
             ])
             ->add('postCode', TextType::class, [
                 'label' => 'PLZ',
                 'required' => $options['required'],
                 'sanitize_html' => true,
+                'attr' => [
+                    'autocomplete' => 'off',
+                ],
             ])
             ->add('city', TextType::class, [
                 'label' => 'Ort',
                 'required' => $options['required'],
                 'sanitize_html' => true,
+                'attr' => [
+                    'autocomplete' => 'off',
+                ],
             ])
             ->add('country', CountryType::class, [
                 'label' => 'Land',
diff --git a/src/Form/BookingParticipantType.php b/src/Form/BookingParticipantType.php
index b5de297..59a2571 100644
--- a/src/Form/BookingParticipantType.php
+++ b/src/Form/BookingParticipantType.php
@@ -168,6 +168,9 @@ class BookingParticipantType extends AbstractType
                 'label' => 'Vorname',
                 'sanitize_html' => true,
                 'property_path' => 'participant.firstName',
+                'attr' => [
+                    'autocomplete' => 'off',
+                ],
             ], $getFieldState('firstName')));
         }
 
@@ -176,6 +179,9 @@ class BookingParticipantType extends AbstractType
                 'label' => 'Nachname',
                 'sanitize_html' => true,
                 'property_path' => 'participant.lastName',
+                'attr' => [
+                    'autocomplete' => 'off',
+                ],
             ], $getFieldState('lastName')));
         }
 
@@ -216,6 +222,9 @@ class BookingParticipantType extends AbstractType
             $form->add('email', EmailType::class, $this->mergeFieldState([
                 'label' => 'E-Mail',
                 'property_path' => 'participant.email',
+                'attr' => [
+                    'autocomplete' => 'off',
+                ],
             ], $getFieldState('email')));
         }
 
@@ -225,6 +234,9 @@ class BookingParticipantType extends AbstractType
                 'required' => false,
                 'sanitize_html' => true,
                 'property_path' => 'participant.mobile',
+                'attr' => [
+                    'autocomplete' => 'off',
+                ],
             ], $getFieldState('mobile')));
         }