diff --git a/src/slic3r/GUI/3DBed.cpp b/src/slic3r/GUI/3DBed.cpp
index e462dc6534..ec7758483f 100644
--- a/src/slic3r/GUI/3DBed.cpp
+++ b/src/slic3r/GUI/3DBed.cpp
@@ -212,8 +212,8 @@ void Bed3D::Axes::render()
         const Transform3d& view_matrix = camera.get_view_matrix();
         shader->set_uniform("view_model_matrix", view_matrix * transform);
         shader->set_uniform("projection_matrix", camera.get_projection_matrix());
-        const Matrix3d view_normal_matrix = view_matrix.matrix().block(0, 0, 3, 3) * transform.matrix().block(0, 0, 3, 3).inverse().transpose();
-        shader->set_uniform("view_normal_matrix", view_normal_matrix);
+        //const Matrix3d view_normal_matrix = view_matrix.matrix().block(0, 0, 3, 3) * transform.matrix().block(0, 0, 3, 3).inverse().transpose();
+        //shader->set_uniform("view_normal_matrix", view_normal_matrix);
         m_arrow.render();
     };
 
@@ -228,7 +228,7 @@ void Bed3D::Axes::render()
     glsafe(::glEnable(GL_DEPTH_TEST));
 
     shader->start_using();
-    shader->set_uniform("emission_factor", 0.0f);
+    //shader->set_uniform("emission_factor", 0.0f);
 
     // x axis
     m_arrow.set_color(AXIS_X_COLOR);
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp b/src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp
index df7a668745..6fcff2620a 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp
@@ -110,10 +110,12 @@ void GLGizmoBrimEars::render_points(const Selection &selection)
 
     if (!has_points) return;
 
-    GLShaderProgram *shader = wxGetApp().get_shader("gouraud_light");
-    if (shader != nullptr) shader->start_using();
+    const auto shader = wxGetApp().get_shader("gouraud_light");
+    if (shader == nullptr)
+        return;
+    shader->start_using();
     ScopeGuard guard([shader]() {
-        if (shader != nullptr) shader->stop_using();
+        shader->stop_using();
     });
 
     const Camera&      camera                          = wxGetApp().plater()->get_camera();
@@ -122,6 +124,8 @@ void GLGizmoBrimEars::render_points(const Selection &selection)
     const Transform3d &instance_scaling_matrix_inverse = vol->get_instance_transformation().get_scaling_factor_matrix().inverse();
     const Transform3d &instance_matrix                 = vol->get_instance_transformation().get_matrix();
 
+    shader->set_uniform("projection_matrix", camera.get_projection_matrix());
+
     ColorRGBA render_color;
     for (size_t i = 0; i < cache_size; ++i) {
         const BrimPoint &brim_point     = editing_cache[i].brim_point;
@@ -151,7 +155,7 @@ void GLGizmoBrimEars::render_points(const Selection &selection)
         }
 
         m_cylinder.model.set_color(render_color);
-        if (shader) shader->set_uniform("emission_factor", 0.5f);
+        shader->set_uniform("emission_factor", 0.5f);
 
         if (vol->is_left_handed()) glFrontFace(GL_CW);