diff --git a/app/views/auth/registrations/new.html.haml b/app/views/auth/registrations/new.html.haml
index 25479104ee..22f53a4f50 100644
--- a/app/views/auth/registrations/new.html.haml
+++ b/app/views/auth/registrations/new.html.haml
@@ -56,7 +56,7 @@
     .fields-group
       = f.input :date_of_birth,
                 as: :date_of_birth,
-                hint: t('simple_form.hints.user.date_of_birth', age: Setting.min_age.to_i),
+                hint: t('simple_form.hints.user.date_of_birth', count: Setting.min_age.to_i),
                 required: true,
                 wrapper: :with_block_label
 
diff --git a/config/locales/simple_form.en.yml b/config/locales/simple_form.en.yml
index 5e162a0d64..240db70b32 100644
--- a/config/locales/simple_form.en.yml
+++ b/config/locales/simple_form.en.yml
@@ -148,7 +148,9 @@ en:
         min_age: Should not be below the minimum age required by the laws of your jurisdiction.
       user:
         chosen_languages: When checked, only posts in selected languages will be displayed in public timelines
-        date_of_birth: We have to make sure you're at least %{age} to use Mastodon. We won't store this.
+        date_of_birth:
+          one: We have to make sure you're at least %{count} to use Mastodon. We won't store this.
+          other: We have to make sure you're at least %{count} to use Mastodon. We don't store this.
         role: The role controls which permissions the user has.
       user_role:
         color: Color to be used for the role throughout the UI, as RGB in hex format