diff --git a/screenless/bureau/archives/archives.py b/screenless/bureau/archives/archives.py
index db8a66d..765dbf1 100644
--- a/screenless/bureau/archives/archives.py
+++ b/screenless/bureau/archives/archives.py
@@ -20,7 +20,7 @@ class Archives(Bureau):
 
         # get location of archive root storage from config
 
-    def _mount_and_archive(dev):
+    def _mount_and_archive(self, dev):
         # TODO: small print options to import stuff
         print("MOUNTING EXTERNAL MEDIUM: ", dev)