diff --git a/main.py b/main.py
index c4713be..5fd8f8f 100644
--- a/main.py
+++ b/main.py
@@ -110,9 +110,10 @@ class CliInteraction(UserInteraction):
         print("User Verification required.")
         return True
 
+clf = None
 def read_nfc_tag():
-    clf = None
     try:
+        import nfc
         clf = nfc.ContactlessFrontend('usb')
         tag = clf.connect(rdwr={'on-connect': lambda tag: False})
         nfc = True