diff --git a/src/libslic3r/Zipper.cpp b/src/libslic3r/Zipper.cpp
index 348be49cc..7e69f0bb4 100644
--- a/src/libslic3r/Zipper.cpp
+++ b/src/libslic3r/Zipper.cpp
@@ -1,3 +1,4 @@
+#include <cstdint>
 #include <exception>
 
 #include "Zipper.hpp"