1 files changed, 1 insertions, 0 deletions
diff --git a/histogram.py b/histogram.py
index ba10a01..c673e16 100644
--- a/histogram.py
+++ b/histogram.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+# -*- coding: utf-8 -*-
 
 import math
 from numbers import Number