diff --git a/docs/public/nginx/configure.rst b/docs/public/nginx/configure.rst
index 950e195..733cb11 100644
--- a/docs/public/nginx/configure.rst
+++ b/docs/public/nginx/configure.rst
@@ -5,4 +5,6 @@ Configure
 
 .. warning:: define headers at 1 place only
 
+.. warning:: remember to set the default charset
+
 .. todo:: extract from server