diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index 763cccf..a5c50d0 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -390,11 +390,13 @@
     int badmac_limit;           /* Limit of records with bad MAC            */
 } opt;
 
-static void my_debug( void *ctx, int level, const char *str )
+static void my_debug( void *ctx, int level,
+                      const char *file, int line,
+                      const char *str )
 {
     ((void) level);
 
-    mbedtls_fprintf( (FILE *) ctx, "%s", str );
+    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: %s", file, line, str );
     fflush(  (FILE *) ctx  );
 }