diff --git a/.bin/Scripts/build-ufd b/.bin/Scripts/build-ufd
index 2cb06ac1..5dd15a7c 100755
--- a/.bin/Scripts/build-ufd
+++ b/.bin/Scripts/build-ufd
@@ -95,7 +95,7 @@ if __name__ == '__main__':
     # Unmount UFD
     try_and_print(
       message='Unmounting UFD...',
-      function=mount,
+      function=unmount,
       mount_point='/mnt/UFD',
       )