diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index 3ee4b12ec5..d16aaae1ff 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -7733,7 +7733,7 @@ void GLCanvas3D::_render_paint_toolbar() const
             if (!ImGui::IsMouseHoveringRect(left_arrow_button.Min, left_arrow_button.Max) && !ImGui::IsMouseHoveringRect(right_arrow_button.Min, right_arrow_button.Max))
                 wxPostEvent(m_canvas, IntEvent(EVT_GLTOOLBAR_FILLCOLOR, i + 1));
         }
-        if (ImGui::IsItemHovered()) {
+        if (ImGui::IsItemHovered() && i < 9) {
             if (!ImGui::IsMouseHoveringRect(left_arrow_button.Min, left_arrow_button.Max) && !ImGui::IsMouseHoveringRect(right_arrow_button.Min, right_arrow_button.Max)) {
                 ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, { 20.0f * f_scale, 10.0f * f_scale });
                 ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 3.0f * f_scale);