diff -u b/core/modules/views/templates/views-view-grid.html.twig b/core/modules/views/templates/views-view-grid.html.twig
--- b/core/modules/views/templates/views-view-grid.html.twig
+++ b/core/modules/views/templates/views-view-grid.html.twig
@@ -74,17 +74,17 @@
     {% endif %}
     <div{{ column.attributes.addClass(col_classes) }}>
       {% for row in column.content %}
-      {% if options.row_class_default %}
-        {%
-          set row_classes = [
-            'views-row',
-            'row-' ~ loop.index,
-          ]
-        %}
-      {% endif %}
-      <div{{ row.attributes.addClass(row_classes) }}>
-        {{ row.content }}
-      </div>
+        {% if options.row_class_default %}
+          {%
+            set row_classes = [
+              'views-row',
+              'row-' ~ loop.index,
+            ]
+          %}
+        {% endif %}
+        <div{{ row.attributes.addClass(row_classes) }}>
+          {{ row.content }}
+        </div>
       {% endfor %}
     </div>
   {% endfor %}