diff --git a/thirdparty/clipper2/include/clipper2/clipper.core.h b/thirdparty/clipper2/include/clipper2/clipper.core.h
index 5a698e96f4..a68e87225e 100644
--- a/thirdparty/clipper2/include/clipper2/clipper.core.h
+++ b/thirdparty/clipper2/include/clipper2/clipper.core.h
@@ -13,6 +13,7 @@
 #include "clipper2/clipper.version.h"
 #include <cstdint>
 #include <vector>
+#include <iterator>
 #include <string>
 #include <iostream>
 #include <algorithm>