diff --git a/xs/src/slic3r/GUI/wxExtensions.cpp b/xs/src/slic3r/GUI/wxExtensions.cpp
index 03d6bdaef..ace0ad53a 100644
--- a/xs/src/slic3r/GUI/wxExtensions.cpp
+++ b/xs/src/slic3r/GUI/wxExtensions.cpp
@@ -172,8 +172,10 @@ void wxDataViewTreeCtrlComboPopup::OnDataViewTreeCtrlSelection(wxCommandEvent& e
 	cmb->SetText(selected);
 }
 
+// ----------------------------------------------------------------------------
 // ***  PrusaCollapsiblePane  ***
 // ----------------------------------------------------------------------------
+#ifdef __WXMSW__
 bool PrusaCollapsiblePane::Create(wxWindow *parent, wxWindowID id, const wxString& label, 
 	const wxPoint& pos, const wxSize& size, long style, const wxValidator& val, const wxString& name)
 {
@@ -284,6 +286,7 @@ bool PrusaCollapsiblePane::Layout()
 
 	return true;
 }
+#endif //__WXMSW__
 
 // *****************************************************************************
 // ----------------------------------------------------------------------------
diff --git a/xs/src/slic3r/GUI/wxExtensions.hpp b/xs/src/slic3r/GUI/wxExtensions.hpp
index ec3b0d479..cea4ce32b 100644
--- a/xs/src/slic3r/GUI/wxExtensions.hpp
+++ b/xs/src/slic3r/GUI/wxExtensions.hpp
@@ -70,8 +70,6 @@ class PrusaCollapsiblePane : public wxCollapsiblePane
 #endif //__WXMSW__
 public:
 	PrusaCollapsiblePane() {}
-
-
 	PrusaCollapsiblePane(	wxWindow *parent,
 							wxWindowID winid,
 							const wxString& label,
@@ -84,7 +82,7 @@ public:
 #ifdef __WXMSW__
 		Create(parent, winid, label, pos, size, style, val, name);
 #else
-		this->Create(parent, winid, label);
+		Create(parent, winid, label);
 #endif //__WXMSW__
 		this->Bind(wxEVT_COLLAPSIBLEPANE_CHANGED, ([parent, this](wxCommandEvent e){
 			wxWindowUpdateLocker noUpdates_cp(this);
@@ -95,6 +93,9 @@ public:
 		}));
 	}
 
+	~PrusaCollapsiblePane() {}
+
+#ifdef __WXMSW__
 	bool Create(wxWindow *parent,
 				wxWindowID id,
 				const wxString& label,
@@ -104,7 +105,6 @@ public:
 				const wxValidator& val,
 				const wxString& name);
 
-#ifdef __WXMSW__
 	void UpdateBtnBmp();
 	void Collapse(bool collapse) override;
 	void SetLabel(const wxString &label) override;