diff --git a/src/add-ons/kernel/bus_managers/usb/Stack.cpp b/src/add-ons/kernel/bus_managers/usb/Stack.cpp
index 1c8d4c72eb..2cd4cdbbbf 100644
--- a/src/add-ons/kernel/bus_managers/usb/Stack.cpp
+++ b/src/add-ons/kernel/bus_managers/usb/Stack.cpp
@@ -65,6 +65,8 @@ Stack::Stack()
 		TRACE(("USB Stack: module %s successfully loaded\n", moduleName));
 	}
 
+	close_module_list(moduleList);
+
 	if (fBusManagers.Count() == 0) {
 		TRACE_ERROR(("USB Stack: no bus managers available\n"));
 		return;