--enable-constraints --enable-revocation --enable-pem --enable-pkcs1
                        --enable-pkcs8 --enable-x509 --enable-pubkey --enable-acert
                        --enable-eap-tnc --enable-eap-ttls --enable-eap-identity
-                       --enable-updown --enable-ext-auth --enable-libipsec
+                       --enable-updown --enable-ext-auth --enable-libipsec --enable-pkcs11
                        --enable-tnccs-20 --enable-imc-attestation --enable-imv-attestation
                        --enable-imc-os --enable-imv-os --enable-tnc-imv --enable-tnc-imc
                        --enable-pki --enable-swanctl --enable-socket-win