mTLS getting failed

i setted up host for mTLS and generated client certificate. then setted rule to block traffic without mTLS as

(http.host eq "api.kitabcha.com" and not cf.tls_client_auth.cert_verified)

(http.host eq "api.kitabcha.com" and not cf.tls_client_auth.cert_verified)

But when i use that client certificate as

curl -v --cert cert.pem --key key.pem https://api.kitabcha.com

curl -v --cert cert.pem --key key.pem https://api.kitabcha.com

it still dont getting accessed.