diff --git a/contrib/nginx.conf b/contrib/nginx.conf
index ecb90e15f..6d6fd15f8 100644
--- a/contrib/nginx.conf
+++ b/contrib/nginx.conf
@@ -18,6 +18,7 @@ server {
     index index.html index.htm index.php;
 
     charset utf-8;
+    client_max_body_size 15M;
 
     location / {
         try_files $uri $uri/ /index.php?$query_string;