diff --git a/crypto/ecdsa_extra/ecdsa_asn1.c b/crypto/ecdsa_extra/ecdsa_asn1.c
index fbf4cca..e6212cc 100644
--- a/crypto/ecdsa_extra/ecdsa_asn1.c
+++ b/crypto/ecdsa_extra/ecdsa_asn1.c
@@ -74,15 +74,7 @@
   }
 
   int ret = 0;
-  ECDSA_SIG *s = NULL;
-
-  if (eckey->ecdsa_meth && eckey->ecdsa_meth->sign) {
-    OPENSSL_PUT_ERROR(ECDSA, ECDSA_R_NOT_IMPLEMENTED);
-    *sig_len = 0;
-    goto err;
-  }
-
-  s = ECDSA_do_sign(digest, digest_len, eckey);
+  ECDSA_SIG *s = ECDSA_do_sign(digest, digest_len, eckey);
   if (s == NULL) {
     *sig_len = 0;
     goto err;