diff --git a/src/main/cpp/json.cpp b/src/main/cpp/json.cpp
index cbe443a..6819097 100644
--- a/src/main/cpp/json.cpp
+++ b/src/main/cpp/json.cpp
@@ -18,6 +18,7 @@
 #include "json.h"
 #include <iomanip>
 #include <sstream>
+#include <cstring>
 
 namespace json {