diff --git a/mo/web/templates/org_index.html b/mo/web/templates/org_index.html
index c60e6c25c567e878a5b9aaca2b5655c9337f5540..f6e3b3d705bffdac9287c34d4741a3039759b87b 100644
--- a/mo/web/templates/org_index.html
+++ b/mo/web/templates/org_index.html
@@ -124,8 +124,8 @@
 				{% if o.rights.can_view_submits() and o.contest.state != RoundState.preparing and o.contest.state != RoundState.closed %}
 				<a class="btn btn-xs btn-success" href='{{ url_for('org_contest_solutions', ct_id=o.contest.contest_id) }}'>Tabulka řešení</a>
 				{% endif %}
-				{% if o.rights.have_right(Right.manage_contest) and o.contest.state != RoundState.closed %}
-				<a class="btn btn-xs btn-default" href="{{ url_for('org_contest_add_user', ct_id=o.contest.contest_id) }}">+ Přidat účastníka</a>
+				{% if o.rights.have_right(Right.manage_contest) and o.contest.state != RoundState.closed and o.contest.state != RoundState.grading %}
+				<a class="btn btn-xs btn-default hidden-xs" href="{{ url_for('org_contest_add_user', ct_id=o.contest.contest_id) }}">+ Přidat účastníka</a>
 				{% endif %}
 				{% if o.rights.have_right(Right.manage_contest) and o.contest.state == RoundState.preparing %}
 				<a class="btn btn-xs btn-default" href='{{ url_for('org_generic_import', ct_id=o.contest.contest_id) }}'>Import</a>