diff --git a/visualize.py b/visualize.py
index 1150b39..ab28a68 100644
--- a/visualize.py
+++ b/visualize.py
@@ -13,12 +13,9 @@
 import multiprocessing
 import logging
 import subprocess
-from Bio import SeqIO
-import Bio.SeqIO.FastaIO as bio
 import numpy as np
 from collections import defaultdict
 from scipy import stats
-import pyBigWig
 from statsmodels.sandbox.stats.multicomp import multipletests #for bonfferoni
 import matplotlib.pyplot as plt
 import random
@@ -109,7 +106,7 @@ def make_box_plot(genes_of_interest, output_directory, figure_name, color_name):
 
 	ax.set_title('The visualization of correlation between gene and exons length')
 	ax.set_xlabel('Genes')
-	ax.set_ylabel('Scores')
+	ax.set_ylabel('Percentage of exons len')
 
 	ax.set_xticklabels(groups_names, rotation=45, fontsize=8)