diff --git a/src/slic3r/GUI/GCodeViewer.hpp b/src/slic3r/GUI/GCodeViewer.hpp
index 2953346a2..9e097e0b1 100644
--- a/src/slic3r/GUI/GCodeViewer.hpp
+++ b/src/slic3r/GUI/GCodeViewer.hpp
@@ -342,7 +342,7 @@ public:
             Vec3f m_world_position;
             Transform3f m_world_transform;
             float m_z_offset{ 0.5f };
-            std::array<float, 4> m_color{ 1.0f, 1.0f, 1.0f, 1.0f };
+            std::array<float, 4> m_color{ 1.0f, 1.0f, 1.0f, 0.5f };
             bool m_visible{ false };
 
         public: