diff --git a/mongoose.c b/mongoose.c
index aa0cbe0e..445d6c19 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -2449,6 +2449,7 @@ static void handle_directory_request(struct mg_connection *conn,
   sort_direction = conn->request_info.query_string != NULL &&
     conn->request_info.query_string[1] == 'd' ? 'a' : 'd';
 
+  conn->must_close = 1;
   mg_printf(conn, "%s",
             "HTTP/1.1 200 OK\r\n"
             "Connection: close\r\n"