diff --git a/src/slic3r/GUI/GLToolbar.hpp b/src/slic3r/GUI/GLToolbar.hpp
index 07d1fcb92..c7b018cfd 100644
--- a/src/slic3r/GUI/GLToolbar.hpp
+++ b/src/slic3r/GUI/GLToolbar.hpp
@@ -7,6 +7,7 @@
 
 #include "GLTexture.hpp"
 #include "Event.hpp"
+#include "libslic3r/Point.hpp"
 
 class wxEvtHandler;