diff --git a/can/interfaces/gs_usb.py b/can/interfaces/gs_usb.py
index fcf21d3f4..55f37d8fd 100644
--- a/can/interfaces/gs_usb.py
+++ b/can/interfaces/gs_usb.py
@@ -220,3 +220,6 @@ def shutdown(self):
                     gs_usb.stop()
                 except usb.core.USBError:
                     pass
+                finally:
+                    usb.util.dispose_resources(gs_usb.gs_usb)
+        usb.util.dispose_resources(self.gs_usb.gs_usb)