diff --git a/src/libslic3r/TriangleSelector.cpp b/src/libslic3r/TriangleSelector.cpp
index 929d3094b4..ef3ccf46f9 100644
--- a/src/libslic3r/TriangleSelector.cpp
+++ b/src/libslic3r/TriangleSelector.cpp
@@ -245,7 +245,7 @@ void TriangleSelector::select_patch(int facet_start, std::unique_ptr<Cursor> &&c
         // BBS: improve details for large cursor radius
         TriangleSelector::HeightRange* hr_cursor = dynamic_cast<TriangleSelector::HeightRange*>(m_cursor.get());
         if (hr_cursor == nullptr) {
-            set_edge_limit(std::min(std::sqrt(m_cursor->radius_sqr) / 5.f, 0.2f));
+            set_edge_limit(std::min(std::sqrt(m_cursor->radius_sqr) / 5.f, 0.05f));
             m_old_cursor_radius_sqr = m_cursor->radius_sqr;
         }
         else {
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoSeam.hpp b/src/slic3r/GUI/Gizmos/GLGizmoSeam.hpp
index 45e68be0d4..94cefa7f07 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoSeam.hpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoSeam.hpp
@@ -35,7 +35,7 @@ protected:
     std::string get_gizmo_entering_text() const override { return "Entering Seam painting"; }
     std::string get_gizmo_leaving_text() const override { return "Leaving Seam painting"; }
     std::string get_action_snapshot_name() override { return "Paint-on seam editing"; }
-    static const constexpr float      CursorRadiusMin = 0.1f; // cannot be zero
+    static const constexpr float      CursorRadiusMin = 0.05f; // cannot be zero
 
 private:
     bool on_init() override;