diff --git a/README.md b/README.md
index c46090a3..b2b8f0a1 100644
--- a/README.md
+++ b/README.md
@@ -185,6 +185,10 @@ var _0x8221 = function (_0xcac13e, _0x3627d7) {
 */
 ```
 
+## Kind of variables
+
+Kind of variables of inserted nodes will auto-detected, based on most prevailing kind of variables of source code.
+
 ### `obfuscate(sourceCode, options)`
 
 Returns `ObfuscationResult` object which contains two public methods:
@@ -952,6 +956,10 @@ Likely this is `selfDefending` mechanism. Something is changing source code afte
 
 No. JSX support isn't planned.
 
+### How to change kind of variables of inserted nodes (`var`, `let` or `const`)?
+
+See: [`Kind of variables`](#kind-of-variables)
+
 ## Backers
 
 Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/javascript-obfuscator#backer)]