diff --git a/src/slic3r/GUI/Gizmos/GLGizmoSeam.hpp b/src/slic3r/GUI/Gizmos/GLGizmoSeam.hpp
index 94cefa7f072..2ba58d31ed7 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoSeam.hpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoSeam.hpp
@@ -37,6 +37,8 @@ class GLGizmoSeam : public GLGizmoPainterBase
     std::string get_action_snapshot_name() override { return "Paint-on seam editing"; }
     static const constexpr float      CursorRadiusMin = 0.05f; // cannot be zero
 
+    const float get_cursor_radius_min() const override { return CursorRadiusMin; }
+
 private:
     bool on_init() override;