diff --git a/src/slic3r/GUI/GLShader.cpp b/src/slic3r/GUI/GLShader.cpp index 02c01d104..b87983bd0 100644 --- a/src/slic3r/GUI/GLShader.cpp +++ b/src/slic3r/GUI/GLShader.cpp @@ -3,6 +3,7 @@ #include "3DScene.hpp" #include "libslic3r/Utils.hpp" +#include "libslic3r/format.hpp" #include <boost/nowide/fstream.hpp> #include <GL/glew.h>