diff --git a/include/libssh/libsshpp.hpp b/include/libssh/libsshpp.hpp
index c3d93e2a..2fe873e2 100644
--- a/include/libssh/libsshpp.hpp
+++ b/include/libssh/libsshpp.hpp
@@ -131,7 +131,7 @@ public:
    * @throws SshException on error
    * @see ssh_userauth_autopubkey
    */
-  int userauthAutopubkey(){
+  void userauthAutopubkey(void){
     int ret=ssh_userauth_autopubkey(c_session,NULL);
     if(ret==SSH_ERROR)
       ssh_throw(ret);