diff --git a/src/slic3r/GUI/Gizmos/GLGizmoEmboss.hpp b/src/slic3r/GUI/Gizmos/GLGizmoEmboss.hpp
index d461425af6..b66f42b0fb 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoEmboss.hpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoEmboss.hpp
@@ -256,7 +256,7 @@ private:
         std::vector<wxString> bad   = {};
 
         // Configuration of font encoding
-        static const wxFontEncoding encoding = wxFontEncoding::wxFONTENCODING_SYSTEM;
+        static constexpr wxFontEncoding encoding = wxFontEncoding::wxFONTENCODING_SYSTEM;
 
         // Identify if preview texture exists
         GLuint texture_id = 0;