diff --git a/setup.py b/setup.py
index e780709..3ec8b45 100644
--- a/setup.py
+++ b/setup.py
@@ -42,6 +42,7 @@ setup(name='brother_ql',
           "future",
           "packbits",
           "pillow>=3.3.0",
+          "pyusb",
       ],
       extras_require = {
           #'brother_ql_analyse':  ["matplotlib",],