diff --git a/preset/nginx.conf b/preset/nginx.conf
index 9f043fc..d28864c 100644
--- a/preset/nginx.conf
+++ b/preset/nginx.conf
@@ -26,7 +26,7 @@ http {
 	aio threads;
 
 	# Even if it not really need, it always good practice to set it up.
-    charset utf-8;
+	charset utf-8;
 
 	# Includes mapping of file name extensions to MIME types of responses
 	# and defines the default type.