diff --git a/640.md b/640.md
index 55a2ff5..7952374 100644
--- a/640.md
+++ b/640.md
@@ -36,7 +36,7 @@ If you list the files in this directory, you should see a few test scripts
 $ ls -al
 ```
 
-**640motortest.py**
+#### 640motortest.py
 
 This script will start each motor port, in the forwards direction, in turn from left to right and then do the same backwards. To run the script enter the following: