diff --git a/xs/src/slic3r/GUI/GLGizmo.cpp b/xs/src/slic3r/GUI/GLGizmo.cpp
index c75c365b2..72bb7ee7c 100644
--- a/xs/src/slic3r/GUI/GLGizmo.cpp
+++ b/xs/src/slic3r/GUI/GLGizmo.cpp
@@ -8,6 +8,7 @@
 #include <GL/glew.h>
 
 #include <iostream>
+#include <numeric>
 
 namespace Slic3r {
 namespace GUI {