diff --git a/rainfall_conversion.py b/rainfall_conversion.py
index 6df1e74c6478a3ae2283b1b1c0f79987c807700a..452666c7c6ea2fe0a81e8c38325e4680af19122c 100644
--- a/rainfall_conversion.py
+++ b/rainfall_conversion.py
@@ -1,3 +1,5 @@
 def inches_to_mm(inches):
 	mm = inches * 25.4
 	 return mm 
+
+# TODO  add function inches_to_cm