diff --git a/deps/opencolorio-2.0.0/src/OpenColorIO/FileRules.cpp b/deps/opencolorio-2.0.0/src/OpenColorIO/FileRules.cpp
index 329f54f50..89553fc37 100644
--- a/deps/opencolorio-2.0.0/src/OpenColorIO/FileRules.cpp
+++ b/deps/opencolorio-2.0.0/src/OpenColorIO/FileRules.cpp
@@ -14,6 +14,7 @@
 #include "PathUtils.h"
 #include "Platform.h"
 #include "utils/StringUtils.h"
+#include <cstring>
 
 
 namespace OCIO_NAMESPACE