diff --git a/tools/u2f_zero_client/client.py b/tools/u2f_zero_client/client.py
index 6452edb..816c270 100755
--- a/tools/u2f_zero_client/client.py
+++ b/tools/u2f_zero_client/client.py
@@ -40,7 +40,7 @@
     print('python hidapi module is required')
     print('try running: ')
     print('     apt-get install libusb-1.0-0-dev libudev-dev')
-    print('     pip install hidapi')
+    print('     pip install hidapi hid')
     sys.exit(1)
 
 try: