diff --git a/src/front/Components/DesignSystem/UserFolder/UserFolderHeader/index.tsx b/src/front/Components/DesignSystem/UserFolder/UserFolderHeader/index.tsx
index b0d3b5e8..bcb21637 100644
--- a/src/front/Components/DesignSystem/UserFolder/UserFolderHeader/index.tsx
+++ b/src/front/Components/DesignSystem/UserFolder/UserFolderHeader/index.tsx
@@ -44,7 +44,7 @@ export default class UserFolderHeader extends React.Component<IProps, IState> {
 					<div className={classes["container"]}>
 						<Typography typo={ITypo.NAV_INPUT_16}>Numéro de téléphone</Typography>
 						<Typography typo={ITypo.P_18}>
-							{this.formatPhoneNumber(this.props.customer.contact.cell_phone_number) ??
+							{this.formatPhoneNumber(this.props.customer.contact.cell_phone_number!) ??
 								this.formatPhoneNumber(this.props.customer.contact.phone_number?.toString() ?? "")}
 						</Typography>
 					</div>