diff --git a/src/slic3r/GUI/Preferences.cpp b/src/slic3r/GUI/Preferences.cpp
index ab296d2976e..c4aa663aa18 100644
--- a/src/slic3r/GUI/Preferences.cpp
+++ b/src/slic3r/GUI/Preferences.cpp
@@ -388,9 +388,10 @@ void PreferencesDialog::accept()
 		app_config->set(it->first, it->second);
 
 	app_config->save();
-
-	wxGetApp().set_label_clr_sys(m_sys_colour->GetColour());
-	wxGetApp().set_label_clr_modified(m_mod_colour->GetColour());
+	if (wxGetApp().is_editor()) {
+		wxGetApp().set_label_clr_sys(m_sys_colour->GetColour());
+		wxGetApp().set_label_clr_modified(m_mod_colour->GetColour());
+	}
 
 	EndModal(wxID_OK);