diff --git a/src/app/components/tieredmenu/tieredmenu.ts b/src/app/components/tieredmenu/tieredmenu.ts
index 04b83fd0291..568e9a944f6 100755
--- a/src/app/components/tieredmenu/tieredmenu.ts
+++ b/src/app/components/tieredmenu/tieredmenu.ts
@@ -193,7 +193,7 @@ import { ObjectUtils, UniqueComponentId, ZIndexUtils } from 'primeng/utils';
         class: 'p-element'
     }
 })
-export class TieredMenuSub implements AfterContentInit {
+export class TieredMenuSub {
     @Input() items: any[];
 
     @Input() itemTemplate: HTMLElement | undefined;
@@ -243,22 +243,21 @@ export class TieredMenuSub implements AfterContentInit {
         })
     }
 
-    ngAfterContentInit(): void {
-        this.positionSubmenu();
-    }
-
     positionSubmenu() {
         const sublist = this.sublistViewChild && this.sublistViewChild.nativeElement;
 
-        if (sublist && !DomHandler.hasClass(sublist, 'p-submenu-list-flipped')) {
+        if (sublist) {
             const parentItem = sublist.parentElement.parentElement;
             const containerOffset = DomHandler.getOffset(parentItem);
             const viewport = DomHandler.getViewport();
             const sublistWidth = sublist.offsetParent ? sublist.offsetWidth : DomHandler.getOuterWidth(sublist);
             const itemOuterWidth = DomHandler.getOuterWidth(parentItem.children[0]);
+            const sublistFlippedClass = 'p-submenu-list-flipped';
 
             if (parseInt(containerOffset.left, 10) + itemOuterWidth + sublistWidth > viewport.width - DomHandler.calculateScrollbarWidth()) {
-                DomHandler.addClass(sublist, 'p-submenu-list-flipped');
+                DomHandler.addClass(sublist, sublistFlippedClass);
+            } else if (DomHandler.hasClass(sublist, sublistFlippedClass)) {
+                DomHandler.removeClass(sublist, sublistFlippedClass);
             }
         }
     }