diff --git a/src/web/js/lib/account_validator.js b/src/web/js/lib/account_validator.js
index 88b456e..fc52c00 100644
--- a/src/web/js/lib/account_validator.js
+++ b/src/web/js/lib/account_validator.js
@@ -124,7 +124,7 @@ AccountValidator.prototype.messageForInvalidEmailAddress = function(email) {
 
 
 
-AccountValidator.MAESTRO_ID_LENGTH_MINIMUM		= 4;
+AccountValidator.MAESTRO_ID_LENGTH_MINIMUM		= 3;
 AccountValidator.MAESTRO_ID_LENGTH_MAXIMUM		= 20;
 
 AccountValidator.MAESTRO_PW_LENGTH_MINIMUM		= 4;
diff --git a/src/web/module/maestro_section_register.html b/src/web/module/maestro_section_register.html
index 09ec7a0..3b9bd0c 100644
--- a/src/web/module/maestro_section_register.html
+++ b/src/web/module/maestro_section_register.html
@@ -161,6 +161,7 @@ function checkData() {
 }
 
 function register_account() {
+	console.log("register_account");
 	$("#register_account").css("display", "none");
 	$("#banking_guide").css("display", "block");
 
@@ -505,7 +506,7 @@ $('#myTab a').on('click', function (e) {
 						<label for="maestro_name" class="col-sm-2 col-form-label">* 아이디</label>
 						<div class="col-sm-6">
 							<input type="text" class="form-control" id="maestro_name" placeholder="아이디 입력">
-							<small class="form-text text-muted">4~20 글자. 한글도 사용 가능합니다.</small>
+							<small class="form-text text-muted">3~20 글자. 한글도 사용 가능합니다.</small>
 						</div>
 						<div class="col-sm-4">
 							<input type="button" id="id_ckeck" class="btn btn-outline-dark" value="중복 체크" onClick="checkMaestroID()">