diff --git a/datasette/templates/table.html b/datasette/templates/table.html
index b7b0771806..0be8fdc92d 100644
--- a/datasette/templates/table.html
+++ b/datasette/templates/table.html
@@ -113,7 +113,7 @@ <h3>{% if filtered_table_rows_count or filtered_table_rows_count == 0 %}{{ "{:,}
                 <ul>
                     {% for facet_value in facet_info.results %}
                         {% if not facet_value.selected %}
-                            <li><a href="{{ facet_value.toggle_url }}">{{ facet_value.label }}</a> {{ "{:,}".format(facet_value.count) }}</li>
+                            <li><a href="{{ facet_value.toggle_url }}">{{ facet_value.label or "_" }}</a> {{ "{:,}".format(facet_value.count) }}</li>
                         {% else %}
                             <li>{{ facet_value.label }} &middot; {{ "{:,}".format(facet_value.count) }} <a href="{{ facet_value.toggle_url }}" class="cross">&#x2716;</a></li>
                         {% endif %}