From e289f98dec1f90bb271cb76c9db64a8b67587a76 Mon Sep 17 00:00:00 2001
From: "Guilherme L. Moraes" <guilherme.lmoraes.devel@gmail.com>
Date: Fri, 22 Jan 2021 12:35:53 -0300
Subject: [PATCH] fix(left-nav): updating typed DDSLeftNavMenu

---
 .../web-components/src/components/masthead/left-nav.ts    | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/packages/web-components/src/components/masthead/left-nav.ts b/packages/web-components/src/components/masthead/left-nav.ts
index ed51e90f053..caf90c06cfc 100644
--- a/packages/web-components/src/components/masthead/left-nav.ts
+++ b/packages/web-components/src/components/masthead/left-nav.ts
@@ -118,9 +118,11 @@ class DDSLeftNav extends StableSelectorMixin(BXSideNav) {
       if (expanded) {
         this._hFocusWrap = focuswrap(this.shadowRoot!, [startSentinelNode, endSentinelNode]);
       } else {
-        this.querySelectorAll('[expanded]').forEach(ddsLeftNavMenu =>
-          (ddsLeftNavMenu as DDSLeftNavMenu).removeAttribute('expanded')
-        );
+        const { selectorNavItemsExpanded } = this.constructor as typeof DDSLeftNav;
+
+        this.querySelectorAll(selectorNavItemsExpanded).forEach(ddsLeftNavMenu => {
+          (ddsLeftNavMenu as DDSLeftNavMenu).expanded = false;
+        });
 
         if (this._hFocusWrap) {
           this._hFocusWrap = this._hFocusWrap.release();