diff --git a/private/self-signed-cert.rkt b/private/self-signed-cert.rkt
index e261b74..f22ff2c 100644
--- a/private/self-signed-cert.rkt
+++ b/private/self-signed-cert.rkt
@@ -213,7 +213,10 @@
    (BIO_get_mem_data (λ (bio-ptr)
                        (let ((r (BIO_ctrl bio-ptr BIO_CTRL_INFO 0)))
                          (let ((r* (subbytes (cadr r) 0 (car r))))
-                           r*))))
+                           (write r*)(newline)
+                           (let ((r** (bytes->string/utf-8 r*)))
+                             (write r**)(newline)
+                             r**)))))
    (ASN1_OCTET_STRING_new (λ ()
                             (ASN1_STRING_type_new V_ASN1_OCTET_STRING)))
    )