diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index e0b13f83f..a6a1843e6 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -498,6 +498,7 @@ struct Sidebar::priv
 
 void Sidebar::priv::layout_printer(bool isBBL, bool isDual)
 {
+    isDual = isDual && isBBL;  // It indicates a multi-extruder layout.
     // Printer - preset
     if (auto sizer = static_cast<wxBoxSizer *>(panel_printer_preset->GetSizer());
             sizer == nullptr || isDual != (sizer->GetOrientation() == wxVERTICAL)) {