diff --git a/apps/participation/tables.py b/apps/participation/tables.py
index cfd121f..b8f3a93 100644
--- a/apps/participation/tables.py
+++ b/apps/participation/tables.py
@@ -42,6 +42,9 @@ class TeamTable(tables.Table):
         attrs = {
             'class': 'table table condensed table-striped',
         }
+        row_attrs = {
+            'class': lambda record: '' if record.participation.solution.link else 'bg-warning',
+        }
         model = Team
         fields = ('name', 'trigram', 'problem',)
         template_name = 'django_tables2/bootstrap4.html'