diff --git a/sample_app.py b/sample_app.py
index 508f8e7..4beb718 100644
--- a/sample_app.py
+++ b/sample_app.py
@@ -20,7 +20,7 @@ def main(numbers_file, multiplier):
         numbers.
     """
 
-    numbers = genfromtxt(numbers_file, comments="#", delimiter=",", unpack=False)
+    numbers = genfromtxt(numbers_file, comments="#", delimiter=",", unpack=False)[:,:-1]
     multiplied_numbers = numbers * multiplier
     plt.figure()
     plt.plot(multiplied_numbers)