diff --git a/make_plot.py b/make_plot.py
index 0a1b091..20e0238 100644
--- a/make_plot.py
+++ b/make_plot.py
@@ -11,8 +11,8 @@
 
 pyplot.figure()
 pyplot.plot(np.arange(1024), col1)
-mean = np.mean(col1)
-pyplot.axhline(mean)
+avg1 = np.mean(col1)
+pyplot.axhline(avg1)
 pyplot.legend(['Column 20', 'Mean'])
 pyplot.title('Plot of Column 20 Values and Mean')
 pyplot.xlabel('Pixels')
@@ -20,8 +20,8 @@
 
 pyplot.figure()
 pyplot.plot(np.arange(1024), col2)
-mean = np.mean(col2)
-pyplot.axhline(mean)
+avg2 = np.mean(col2)
+pyplot.axhline(avg2)
 pyplot.legend(['Column 200', 'Mean'])
 pyplot.title('Plot of Column 200 Values and Mean')
 pyplot.xlabel('Pixels')
@@ -29,8 +29,8 @@
 
 pyplot.figure()
 pyplot.plot(np.arange(1024), col3)
-mean = np.mean(col3)
-pyplot.axhline(mean)
+avg3 = np.mean(col3)
+pyplot.axhline(avg3)
 pyplot.legend(['Column 800', 'Mean'])
 pyplot.title('Plot of Column 800 Values and Mean')
 pyplot.xlabel('Pixels')