diff --git a/tests/pillar/proxy_with_ssl.sls b/tests/pillar/proxy_with_ssl.sls
index 824fa07..e1d0a8d 100644
--- a/tests/pillar/proxy_with_ssl.sls
+++ b/tests/pillar/proxy_with_ssl.sls
@@ -251,6 +251,7 @@
             port: 80
             protocol: http
             size: 10000m
+            buffer_size: 20m
             timeout: 43200
             websocket: true
             request_buffer: false