diff --git a/anglerfish/demux/adaptor.py b/anglerfish/demux/adaptor.py
index b8787ac..6f51b5c 100644
--- a/anglerfish/demux/adaptor.py
+++ b/anglerfish/demux/adaptor.py
@@ -95,7 +95,6 @@ def __init__(self, sequence, name, delim, index):
         self.len_after_index = 0
         self.len_before_index = 0
 
-
         # Dynamically assign attributes
         self.umi = re.findall(udelim, self.sequence)