diff --git a/themes/seven/style.css b/themes/seven/style.css
index 6ac7861..7279160 100644
--- a/themes/seven/style.css
+++ b/themes/seven/style.css
@@ -505,6 +505,10 @@ table.system-status-report tr.error {
   color: #8c2e0b;
   background-color: #fef5f1;
 }
+
+table th.select-all {
+  width: 14px;
+ }
 /**
  * Exception for webkit bug with the right border of the last cell
  * in some tables, since it's webkit only, we can use :last-child