- Report proper error number

diff --git a/programs/ssl/ssl_server.c b/programs/ssl/ssl_server.c
index 833c74a..d4798ec 100644
--- a/programs/ssl/ssl_server.c
+++ b/programs/ssl/ssl_server.c
@@ -463,7 +463,7 @@
                     break;
 
                 default:
-                    printf( " ssl_read returned %d\n", ret );
+                    printf( " ssl_read returned -0x%x\n", -ret );
                     break;
             }