diff --git a/src/pretix/presale/templates/pretixpresale/event/checkout_addons.html b/src/pretix/presale/templates/pretixpresale/event/checkout_addons.html
index 2e7b43acd6..40fd521cc6 100644
--- a/src/pretix/presale/templates/pretixpresale/event/checkout_addons.html
+++ b/src/pretix/presale/templates/pretixpresale/event/checkout_addons.html
@@ -331,13 +331,13 @@
             {% endfor %}
         </div>
         <div class="row checkout-button-row">
-            <div class="col-md-4">
+            <div class="col-md-4 col-sm-6">
                 <a class="btn btn-block btn-default btn-lg"
                         href="{{ prev_url }}">
                     {% trans "Go back" %}
                 </a>
             </div>
-            <div class="col-md-4 col-md-offset-4">
+            <div class="col-md-4 col-md-offset-4 col-sm-6">
                 <button class="btn btn-block btn-primary btn-lg" type="submit">
                     {% trans "Continue" %}
                 </button>
diff --git a/src/pretix/presale/templates/pretixpresale/event/checkout_confirm.html b/src/pretix/presale/templates/pretixpresale/event/checkout_confirm.html
index b3e607b7b7..810f848fb0 100644
--- a/src/pretix/presale/templates/pretixpresale/event/checkout_confirm.html
+++ b/src/pretix/presale/templates/pretixpresale/event/checkout_confirm.html
@@ -185,13 +185,13 @@
             </div>
         {% endif %}
         <div class="row checkout-button-row clearfix">
-            <div class="col-md-4">
+            <div class="col-md-4 col-sm-6">
                 <a class="btn btn-block btn-default btn-lg"
                         href="{{ prev_url }}">
                     {% trans "Go back" %}
                 </a>
             </div>
-            <div class="col-md-4 col-md-offset-4">
+            <div class="col-md-4 col-md-offset-4 col-sm-6">
                 <button class="btn btn-block btn-primary btn-lg" type="submit">
                     {% if cart.total > 0 %}
                         {% trans "Place binding order" %}
diff --git a/src/pretix/presale/templates/pretixpresale/event/checkout_payment.html b/src/pretix/presale/templates/pretixpresale/event/checkout_payment.html
index 113ac24bc8..48bf1929a6 100644
--- a/src/pretix/presale/templates/pretixpresale/event/checkout_payment.html
+++ b/src/pretix/presale/templates/pretixpresale/event/checkout_payment.html
@@ -66,13 +66,13 @@
             {% endif %}
         </div>
         <div class="row checkout-button-row">
-            <div class="col-md-4">
+            <div class="col-md-4 col-sm-6">
                 <a class="btn btn-block btn-default btn-lg"
                         href="{{ prev_url }}">
                     {% trans "Go back" %}
                 </a>
             </div>
-            <div class="col-md-4 col-md-offset-4">
+            <div class="col-md-4 col-md-offset-4 col-sm-6">
                 <button class="btn btn-block btn-primary btn-lg" type="submit">
                     {% trans "Continue" %}
                 </button>
diff --git a/src/pretix/presale/templates/pretixpresale/event/checkout_questions.html b/src/pretix/presale/templates/pretixpresale/event/checkout_questions.html
index 08c6a3dd23..e1d2cb1fc2 100644
--- a/src/pretix/presale/templates/pretixpresale/event/checkout_questions.html
+++ b/src/pretix/presale/templates/pretixpresale/event/checkout_questions.html
@@ -141,13 +141,13 @@
             {% endfor %}
         </div>
         <div class="row checkout-button-row">
-            <div class="col-md-4">
+            <div class="col-md-4 col-sm-6">
                 <a class="btn btn-block btn-default btn-lg"
                         href="{{ prev_url }}">
                     {% trans "Go back" %}
                 </a>
             </div>
-            <div class="col-md-4 col-md-offset-4">
+            <div class="col-md-4 col-md-offset-4 col-sm-6">
                 <button class="btn btn-block btn-primary btn-lg" type="submit">
                     {% trans "Continue" %}
                 </button>
diff --git a/src/pretix/presale/templates/pretixpresale/event/index.html b/src/pretix/presale/templates/pretixpresale/event/index.html
index d2426b0836..ad2d263a6b 100644
--- a/src/pretix/presale/templates/pretixpresale/event/index.html
+++ b/src/pretix/presale/templates/pretixpresale/event/index.html
@@ -58,14 +58,14 @@
                         {% endif %}
                     </em>
                     <div class="row checkout-button-row">
-                        <div class="col-md-4 col-xs-12 hidden-xs">
+                        <div class="col-md-4 col-sm-6 col-xs-12 hidden-xs">
                             <form method="post" data-asynctask action="{% eventurl request.event "presale:event.cart.clear" cart_namespace=cart_namespace %}">
                                 {% csrf_token %}
                                 <button class="btn btn-block btn-default btn-lg" type="submit">
                                     <i class="fa fa-close"></i> {% trans "Empty cart" %}</button>
                             </form>
                         </div>
-                        <div class="col-md-4 col-md-offset-4 col-xs-12">
+                        <div class="col-md-4 col-sm-6 col-md-offset-4 col-xs-12">
                             <a class="btn btn-block btn-primary btn-lg"
                                     href="{% eventurl request.event "presale:event.checkout.start" cart_namespace=cart_namespace  %}">
                                 {% if has_addon_choices or cart.total == 0 %}