diff --git a/vtysh/vtysh_main.c b/vtysh/vtysh_main.c
index ca119eb900..a72cb6e809 100644
--- a/vtysh/vtysh_main.c
+++ b/vtysh/vtysh_main.c
@@ -111,6 +111,8 @@ static void vtysh_rl_callback(char *line_read)
 
 	if (!vtysh_loop_exited)
 		rl_callback_handler_install(vtysh_prompt(), vtysh_rl_callback);
+
+	free(line_read);
 }
 
 /* SIGTSTP handler.  This function care user's ^Z input. */