diff --git a/crypto/x509v3/v3_alt.c b/crypto/x509v3/v3_alt.c
index 5a4fadf..74e05bf 100644
--- a/crypto/x509v3/v3_alt.c
+++ b/crypto/x509v3/v3_alt.c
@@ -210,15 +210,18 @@
         break;
 
     case GEN_EMAIL:
-        BIO_printf(out, "email:%s", gen->d.ia5->data);
+        BIO_printf(out, "email:");
+        ASN1_STRING_print(out, gen->d.ia5);
         break;
 
     case GEN_DNS:
-        BIO_printf(out, "DNS:%s", gen->d.ia5->data);
+        BIO_printf(out, "DNS:");
+        ASN1_STRING_print(out, gen->d.ia5);
         break;
 
     case GEN_URI:
-        BIO_printf(out, "URI:%s", gen->d.ia5->data);
+        BIO_printf(out, "URI:");
+        ASN1_STRING_print(out, gen->d.ia5);
         break;
 
     case GEN_DIRNAME: