diff --git a/aos/configuration.cc b/aos/configuration.cc
index 76704a4..7fad440 100644
--- a/aos/configuration.cc
+++ b/aos/configuration.cc
@@ -3,11 +3,11 @@
 #include <arpa/inet.h>
 #include <ifaddrs.h>
 #include <netinet/in.h>
-#include <stdlib.h>
-#include <string.h>
 #include <sys/types.h>
 #include <unistd.h>
 
+#include <cstdlib>
+#include <cstring>
 #include <map>
 #include <set>
 #include <string>