diff --git a/bwapy/libbwapy.pyx b/bwapy/libbwapy.pyx
index f39f699..01fc085 100644
--- a/bwapy/libbwapy.pyx
+++ b/bwapy/libbwapy.pyx
@@ -326,11 +326,7 @@ cdef class BwaAln:
 
         # TODO: can `_pacseq` be passed here?
         # refine gapped alignment
-        mode: int
-        mode = int(opt._delegate.mode)
         bwa_refine_gapped(self._index._bns, num_seqs, seqs, NULL)
-        for i in range(num_seqs):
-            s = &seqs[i]
 
         # create the AlignedSegment from FastxRecrod and bwa_seq_t.
         recs = [