diff --git a/src/libslic3r/FilamentGroupUtils.cpp b/src/libslic3r/FilamentGroupUtils.cpp
index 6089ac24b..1b16a1337 100644
--- a/src/libslic3r/FilamentGroupUtils.cpp
+++ b/src/libslic3r/FilamentGroupUtils.cpp
@@ -1,4 +1,5 @@
 #include "FilamentGroupUtils.hpp"
+#include <regex>
 #include <sstream>
 
 namespace Slic3r