diff --git a/xs/src/libslic3r/PlaceholderParser.cpp b/xs/src/libslic3r/PlaceholderParser.cpp
index 57220628f..03aeee37e 100644
--- a/xs/src/libslic3r/PlaceholderParser.cpp
+++ b/xs/src/libslic3r/PlaceholderParser.cpp
@@ -1,4 +1,5 @@
 #include "PlaceholderParser.hpp"
+#include <cstring>
 #include <ctime>
 #include <iomanip>
 #include <sstream>