diff --git a/addons/website/data/website_data.xml b/addons/website/data/website_data.xml
index 599a4e1c788..c3e2f575906 100644
--- a/addons/website/data/website_data.xml
+++ b/addons/website/data/website_data.xml
@@ -129,7 +129,7 @@
                                                 </div>
                                                 <div class="mb-0 py-2 col-12 s_website_form_submit" data-name="Submit Button">
                                                     <div style="width: 200px;" class="s_website_form_label"/>
-                                                    <a href="#" role="button" class="btn btn-primary btn-lg s_website_form_send">Submit</a>
+                                                    <a href="#" role="button" class="btn btn-primary s_website_form_send">Submit</a>
                                                     <span id="s_website_form_result"></span>
                                                 </div>
                                             </div>
diff --git a/addons/website/views/snippets/s_website_form.xml b/addons/website/views/snippets/s_website_form.xml
index 1e6120b99a1..a062ce7ee49 100644
--- a/addons/website/views/snippets/s_website_form.xml
+++ b/addons/website/views/snippets/s_website_form.xml
@@ -8,7 +8,7 @@
                 <div class="s_website_form_rows row s_col_no_bgcolor">
                     <div class="mb-0 py-2 col-12 s_website_form_submit" data-name="Submit Button">
                         <div style="width: 200px;" class="s_website_form_label"/>
-                        <a href="#" role="button" class="btn btn-primary btn-lg s_website_form_send">Submit</a>
+                        <a href="#" role="button" class="btn btn-primary s_website_form_send">Submit</a>
                         <span id="s_website_form_result"></span>
                     </div>
                 </div>
diff --git a/addons/website_mass_mailing/views/snippets_templates.xml b/addons/website_mass_mailing/views/snippets_templates.xml
index 11e389613a5..3f7479fc34e 100644
--- a/addons/website_mass_mailing/views/snippets_templates.xml
+++ b/addons/website_mass_mailing/views/snippets_templates.xml
@@ -123,7 +123,7 @@ database, without the s_newsletter_list class. See fixNewsletterListClass.
                     </div>
                     <div class="mb-0 py-2 col-12 s_website_form_submit" data-name="Submit Button">
                         <div style="width: 250px;" class="s_website_form_label"/>
-                        <a href="#" role="button" class="btn btn-primary btn-lg s_website_form_send">Subscribe</a>
+                        <a href="#" role="button" class="btn btn-primary s_website_form_send">Subscribe</a>
                         <span id="s_website_form_result"></span>
                     </div>
                 </div>