diff --git a/README-DEV.md b/README-DEV.md
index 85597f1..2cc5136 100644
--- a/README-DEV.md
+++ b/README-DEV.md
@@ -2,11 +2,11 @@ Testing
 -------
 In a Python 3 virtualenv:
 
-~~~
+```
 pip install -e .
 pip install -r requirements-test.txt
 make test
-~~~
+```
 
 Releasing
 ---------