diff --git a/Concurrent Systems/notes/10 - Consensus Implementation.md b/Concurrent Systems/notes/10 - Consensus Implementation.md
index 1963ff4..fd15b8e 100644
--- a/Concurrent Systems/notes/10 - Consensus Implementation.md	
+++ b/Concurrent Systems/notes/10 - Consensus Implementation.md	
@@ -128,4 +128,4 @@ propose(v) :=
 		return tmp
 ```
 
-Exercise: devise a consensus object with `CN = ∞` by using the compare&swap 
\ No newline at end of file
+Exercise: devise a consensus object with `CN = ∞` by using the compare&swap that returns booleans.
\ No newline at end of file