diff --git a/templates/table/structure/display_structure.twig b/templates/table/structure/display_structure.twig
index 54595957d6..873c2be091 100644
--- a/templates/table/structure/display_structure.twig
+++ b/templates/table/structure/display_structure.twig
@@ -64,7 +64,7 @@
             {% endif %}
             {% if field_name in columns_with_index %}
                 {% set displayed_field_name = displayed_field_name ~ Util_getImage(
-                    'b_key', 'Index'|trans
+                    'bd_primary', 'Index'|trans
                 ) %}
             {% endif %}
         <tr>