diff --git a/config.sample.js b/config.sample.js
index 53c6b11..15c90c9 100644
--- a/config.sample.js
+++ b/config.sample.js
@@ -41,6 +41,9 @@ module.exports = {
 		folder: 'uploads',
 
 		// Max file size allowed. Needs to be in MB
+		// Note: When maxSize is greater than 1 MiB,
+		// 	 you must set the client_max_body_size
+		//	 to the same as maxSize.
 		maxSize: '512MB',
 
 		// The length of the random generated name for the uploaded files