diff --git a/phpBB/adm/style/admin.css b/phpBB/adm/style/admin.css
index 18a2084b36..60a5cd9472 100644
--- a/phpBB/adm/style/admin.css
+++ b/phpBB/adm/style/admin.css
@@ -913,6 +913,7 @@ table.styles td.users, table td.mark {
 
 table.fixed-width-table {
 	table-layout: fixed;
+	word-break: break-word;
 }
 
 @media only screen and (max-width: 700px), only screen and (max-device-width: 700px)