diff --git a/src/pretix/control/forms/renderers.py b/src/pretix/control/forms/renderers.py
index 24d649c7c7..7b7edc2272 100644
--- a/src/pretix/control/forms/renderers.py
+++ b/src/pretix/control/forms/renderers.py
@@ -19,6 +19,12 @@ def render_label(content, label_for=None, label_class=None, label_title='', opti
         attrs['class'] = label_class
     if label_title:
         attrs['title'] = label_title
+
+    if text_value(content) == ' ':
+        # Empty label, e.g. checkbox
+        attrs.setdefault('class', '')
+        attrs['class'] += ' label-empty'
+
     builder = '<{tag}{attrs}>{content}{opt}</{tag}>'
     return format_html(
         builder,
diff --git a/src/pretix/static/pretixcontrol/scss/_forms.scss b/src/pretix/static/pretixcontrol/scss/_forms.scss
index 3b86ee5529..b161d13e92 100644
--- a/src/pretix/static/pretixcontrol/scss/_forms.scss
+++ b/src/pretix/static/pretixcontrol/scss/_forms.scss
@@ -311,6 +311,9 @@ input[type=number].short {
   }
 }
 
+label.label-empty {
+  pointer-events: none;
+}
 label .optional {
   color: $text-muted;
   font-weight: normal;