diff --git a/scratch_link.py b/scratch_link.py
index 605b1e3..cb08ea7 100755
--- a/scratch_link.py
+++ b/scratch_link.py
@@ -195,7 +195,7 @@ class BLESession(Session):
             self.perip.disconnect()
 
     def __del__(self):
-        close(self)
+        self.close()
 
     def matches(self, dev, filters):
         """