diff --git a/shared/src/OctalCode.cpp b/shared/src/OctalCode.cpp
index 8ba41ea0d9..2bb5766e36 100644
--- a/shared/src/OctalCode.cpp
+++ b/shared/src/OctalCode.cpp
@@ -7,6 +7,7 @@
 //
 
 #include <cmath>
+#include <cstring>
 #include "SharedUtil.h"
 #include "OctalCode.h"