diff --git a/crypto/openssh/openbsd-compat/openssl-compat.h b/crypto/openssh/openbsd-compat/openssl-compat.h
--- a/crypto/openssh/openbsd-compat/openssl-compat.h
+++ b/crypto/openssh/openbsd-compat/openssl-compat.h
@@ -66,6 +66,8 @@
 
 #ifndef HAVE_EVP_CIPHER_CTX_GET_IV
 # ifdef HAVE_EVP_CIPHER_CTX_GET_UPDATED_IV
+/* Workaround namespace wrapper from ssh-namespace.h */
+#  undef EVP_CIPHER_CTX_get_iv
 #  define EVP_CIPHER_CTX_get_iv EVP_CIPHER_CTX_get_updated_iv
 # else /* HAVE_EVP_CIPHER_CTX_GET_UPDATED_IV */
 int EVP_CIPHER_CTX_get_iv(const EVP_CIPHER_CTX *ctx,