diff --git a/ImmuneBuilder/sequence_checks.py b/ImmuneBuilder/sequence_checks.py
index 8c6197e..ca00a53 100644
--- a/ImmuneBuilder/sequence_checks.py
+++ b/ImmuneBuilder/sequence_checks.py
@@ -28,7 +28,7 @@ def number_single_sequence(sequence, chain, scheme="imgt", allowed_species=['hum
 
     # Renumber once sanity checks done
     if scheme == "raw":
-        output = [((i+1, " "),x[1]) for i,x in enumerate(numbered[0][0][0]) if x[1] != "-"]
+        output = [((i+1, " "),x[1]) for i,x in enumerate(output)]
     elif scheme != 'imgt':
         numbered, _, _ = anarci([("sequence", sequence)], scheme=scheme, output=False, allow=set(allow), allowed_species=allowed_species)
         output = [x for x in numbered[0][0][0] if x[1] != "-"]