Angular-Material: display a tooltip on a form label

I would like to display a tooltip on a label. Unfortunately this does not work. Is there a simple solution ?

<mat-form-field >
<mat-label matTooltip="Please enter your E-Mail Address">
E-Mail <mat-icon>help_outline</mat-icon>
</mat-label>
<input
matInput
placeholder="Enter your email"
[formControl]="email"
>
<mat-error *ngIf="email.invalid">{{getErrorMessage()}}</mat-error>
</mat-form-field>


See this Stack-Blitz Example

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