diff --git a/src/material/datepicker/calendar-header.html b/src/material/datepicker/calendar-header.html
index 7b7595dc14df..7570d82e9a02 100644
--- a/src/material/datepicker/calendar-header.html
+++ b/src/material/datepicker/calendar-header.html
@@ -3,7 +3,7 @@
     <button mat-button type="button" class="mat-calendar-period-button"
             (click)="currentPeriodClicked()" [attr.aria-label]="periodButtonLabel"
             [attr.aria-describedby]="_buttonDescriptionId"
-            cdkAriaLive="polite">
+            aria-live="polite">
       <span [attr.id]="_buttonDescriptionId">{{periodButtonText}}</span>
       <svg class="mat-calendar-arrow" [class.mat-calendar-invert]="calendar.currentView !== 'month'"
            viewBox="0 0 10 5" focusable="false">