diff --git a/src/slic3r/GUI/3DBed.cpp b/src/slic3r/GUI/3DBed.cpp
index 7b08b5f79..eaf75ba5b 100644
--- a/src/slic3r/GUI/3DBed.cpp
+++ b/src/slic3r/GUI/3DBed.cpp
@@ -141,11 +141,13 @@ void Bed3D::Axes::render() const
 bool Bed3D::set_shape(const Pointfs& shape, const std::string& custom_texture, const std::string& custom_model, bool force_as_custom)
 {
     auto check_texture = [](const std::string& texture) {
-        return !texture.empty() && (boost::algorithm::iends_with(texture, ".png") || boost::algorithm::iends_with(texture, ".svg")) && boost::filesystem::exists(texture);
+        boost::system::error_code ec; // so the exists call does not throw (e.g. after a permission problem)
+        return !texture.empty() && (boost::algorithm::iends_with(texture, ".png") || boost::algorithm::iends_with(texture, ".svg")) && boost::filesystem::exists(texture, ec);
     };
 
     auto check_model = [](const std::string& model) {
-        return !model.empty() && boost::algorithm::iends_with(model, ".stl") && boost::filesystem::exists(model);
+        boost::system::error_code ec;
+        return !model.empty() && boost::algorithm::iends_with(model, ".stl") && boost::filesystem::exists(model, ec);
     };
 
     EType type;