diff --git a/src/slic3r/GUI/GUI_Utils.cpp b/src/slic3r/GUI/GUI_Utils.cpp
index 6bce54dbc5..dc64141bae 100644
--- a/src/slic3r/GUI/GUI_Utils.cpp
+++ b/src/slic3r/GUI/GUI_Utils.cpp
@@ -21,10 +21,12 @@
 namespace Slic3r {
 namespace GUI {
 
+#ifdef _WIN32
 wxDEFINE_EVENT(EVT_HID_DEVICE_ATTACHED, HIDDeviceAttachedEvent);
 wxDEFINE_EVENT(EVT_HID_DEVICE_DETACHED, HIDDeviceDetachedEvent);
 wxDEFINE_EVENT(EVT_VOLUME_ATTACHED, VolumeAttachedEvent);
 wxDEFINE_EVENT(EVT_VOLUME_DETACHED, VolumeDetachedEvent);
+#endif // _WIN32
 
 wxTopLevelWindow* find_toplevel_parent(wxWindow *window)
 {