diff --git a/src/net/SocketAddress.cxx b/src/net/SocketAddress.cxx
index 3635d13dd..4cba91d30 100644
--- a/src/net/SocketAddress.cxx
+++ b/src/net/SocketAddress.cxx
@@ -33,8 +33,7 @@
 #include "util/StringView.hxx"
 
 #include <cassert>
-
-#include <string.h>
+#include <cstring>
 
 #ifdef HAVE_UN
 #include <sys/un.h>