diff --git a/2013-04-08-bool.md b/2013-04-08-bool.md
index ea50bb6e..14a9b176 100644
--- a/2013-04-08-bool.md
+++ b/2013-04-08-bool.md
@@ -66,9 +66,11 @@ if (different(512, 256) == YES) {
 
 This evaluates to:
 
-    11 != 10
-    10 == 11
-    512 == 256
+~~~
+11 != 10
+10 == 11
+512 == 256
+~~~
 
 Now, [this might be acceptable for JavaScript](https://www.destroyallsoftware.com/talks/wat), but Objective-C don't suffer fools gladly.