diff --git a/addons/web/static/src/webclient/actions/reports/report.scss b/addons/web/static/src/webclient/actions/reports/report.scss
index 5065f54d2fb..48b2a4e02ab 100644
--- a/addons/web/static/src/webclient/actions/reports/report.scss
+++ b/addons/web/static/src/webclient/actions/reports/report.scss
@@ -189,6 +189,9 @@ ul.o_checklist {
     tbody, thead, tfoot, tr, td, th {
         border: 0 none;
     }
+    > :not(:first-child) {
+        border-top-style: none;
+    }
 }
 
 li.oe-nested {