diff --git a/competition/views.py b/competition/views.py
index e4e35c55..9420ba66 100644
--- a/competition/views.py
+++ b/competition/views.py
@@ -704,8 +704,7 @@ def participants_export(self, request, pk=None):
         header = ProfileExportSerializer.Meta.fields
         writer = csv.DictWriter(response, fieldnames=header)
         writer.writeheader()
-        for row in serializer.data:
-            writer.writerow(row)
+        writer.writerows(serializer.data)
         return response
 
     def post(self, request, format_post):