diff --git a/examples/util.cc b/examples/util.cc
index 9dd9b9d9ab3632fd02ddb8b832c822c3d606ac20..e4853e01401cbea2531ad4f8cf539f5dcce98eb6 100644
--- a/examples/util.cc
+++ b/examples/util.cc
@@ -34,6 +34,7 @@
 #include <netdb.h>
 
 #include <cassert>
+#include <cstring>
 #include <chrono>
 #include <array>
 #include <iostream>