diff --git a/src/libslic3r/Fill/FillCrossHatch.cpp b/src/libslic3r/Fill/FillCrossHatch.cpp
index a6f05b65d5..7b9f96fa78 100644
--- a/src/libslic3r/Fill/FillCrossHatch.cpp
+++ b/src/libslic3r/Fill/FillCrossHatch.cpp
@@ -1,3 +1,4 @@
+#include "../ClipperUtils.hpp"
 #include "../ShortestPath.hpp"
 #include <cmath>