diff --git a/scripts/formatting/datastructure_suitesparse.py b/scripts/formatting/datastructure_suitesparse.py
index 502a8822..6e89d628 100644
--- a/scripts/formatting/datastructure_suitesparse.py
+++ b/scripts/formatting/datastructure_suitesparse.py
@@ -139,7 +139,7 @@ def write_datastructure_bench(args, tensor, out_path, tiles=None):
             vec = vec.toarray().flatten()
             formatWriter.writeout_separate_vec(vec, dirname, tensorname)
     elif "mat_vecmul" == args.benchname or "mat_vecmul_ji" in args.benchname:
-        formatWriter.writeout_separate_sparse_only(coo, dirname, tensorname, format_str="ss10")
+        formatWriter.writeout_separate_sparse_only(coo, dirname, tensorname, format_str="ss01")
         if not args.no_gen_other:
             tensorname = 'c'
             vec = scipy.sparse.random(shape[1], 1, density=args.density, data_rvs=np.ones)
diff --git a/scripts/util/util.py b/scripts/util/util.py
index 44d7323c..8332ba1b 100644
--- a/scripts/util/util.py
+++ b/scripts/util/util.py
@@ -496,7 +496,7 @@ def writeout_separate_vec(self, vec, dir_path, tensorname, format_str="s0", hw=T
             else:
                 filename = os.path.join(vec_dir, "tensor_" + tensorname + "_mode_0_seg")
             with open(filename, "w") as ofile:
-                ofile.write(array_newline_str([0, len(vec_sp) + 1]))
+                ofile.write(array_newline_str([0, len(vec_sp)]))
 
             if not hw:
                 filename = os.path.join(vec_dir, tensorname + "0_crd.txt")
@@ -535,7 +535,7 @@ def writeout_separate_vec(self, vec, dir_path, tensorname, format_str="s0", hw=T
                 ofile.write(array_newline_str(vec_shape))
 
     def writeout_separate_sparse_only(self, coo, dir_path, tensorname, format_str="ss01", hw=True):
-
+        
         if format_str == "ss01":
             dcsr_dir = Path(dir_path)
             dcsr_dir.mkdir(parents=True, exist_ok=True, mode=0o777)