diff --git a/src/pkcs11/framework-pkcs15.c b/src/pkcs11/framework-pkcs15.c
index 14268424..81b50be6 100644
--- a/src/pkcs11/framework-pkcs15.c
+++ b/src/pkcs11/framework-pkcs15.c
@@ -5748,7 +5748,7 @@ static CK_RV register_ec_mechanisms(struct sc_pkcs11_card *p11card, int flags,
 	/* ADD ECDH mechanisms */
 	/* The PIV uses curves where CKM_ECDH1_DERIVE and CKM_ECDH1_COFACTOR_DERIVE produce the same results */
 	if(flags & SC_ALGORITHM_ECDH_CDH_RAW) {
-		mech_info.flags &= ~CKF_SIGN;
+		mech_info.flags &= ~(CKF_SIGN | CKF_VERIFY);
 		mech_info.flags |= CKF_DERIVE;
 
 		mt = sc_pkcs11_new_fw_mechanism(CKM_ECDH1_COFACTOR_DERIVE, &mech_info, CKK_EC, NULL, NULL);