1 files changed, 3 insertions, 2 deletions
diff --git a/src/auth.c b/src/auth.c
index 8a686dc2..59b6f134 100644
--- a/src/auth.c
+++ b/src/auth.c
@@ -22,9 +22,9 @@
  * MA 02111-1307, USA.
  */
 
-#include <stdlib.h>
+#include "config.h"
+
 #include <stdio.h>
-#include <string.h>
 
 #ifndef _WIN32
 #include <netinet/in.h>
@@ -707,6 +707,7 @@ static int ssh_userauth_agent_publickey(ssh_session session,
 
     rc = ssh_buffer_add_ssh_string(session->out_buffer, str);
     ssh_string_free(str);
+    str = NULL;
     if (rc < 0) {
         goto fail;
     }