diff --git a/crypto/x509/x509.h b/crypto/x509/x509.h
index e7706ce9f..9b26b24ef 100644
--- a/crypto/x509/x509.h
+++ b/crypto/x509/x509.h
@@ -856,10 +856,6 @@ X509_REQ *X509_REQ_dup(X509_REQ *req);
 X509_ALGOR *X509_ALGOR_dup(X509_ALGOR *xn);
 X509_NAME *X509_NAME_dup(X509_NAME *xn);
 X509_NAME_ENTRY *X509_NAME_ENTRY_dup(X509_NAME_ENTRY *ne);
-#ifndef OPENSSL_NO_RSA
-RSA *RSAPublicKey_dup(RSA *rsa);
-RSA *RSAPrivateKey_dup(RSA *rsa);
-#endif
 
 #endif /* !SSLEAY_MACROS */