diff --git a/projects/ngx-mat-input-tel/src/lib/ngx-mat-input-tel.component.html b/projects/ngx-mat-input-tel/src/lib/ngx-mat-input-tel.component.html
index 1f0ae7f86..be1b38102 100644
--- a/projects/ngx-mat-input-tel/src/lib/ngx-mat-input-tel.component.html
+++ b/projects/ngx-mat-input-tel/src/lib/ngx-mat-input-tel.component.html
@@ -15,9 +15,8 @@
 
   <mat-menu
     #menu="matMenu"
-    class="ngx-mat-input-tel-mat-menu-panel"
-    backdropClass="ngx-mat-input-tel-overlay-backdrop"
-    overlayPanelClass="ngx-mat-input-tel-overlay-pane"
+    class="ngx-mat-input-tel-overlay-pane"
+    [backdropClass]="'ngx-mat-input-tel-overlay-backdrop'"
   >
     <input
       #menuSearchInput