diff --git a/README.md b/README.md
index 595e449..bdbf9f0 100644
--- a/README.md
+++ b/README.md
@@ -254,7 +254,7 @@ usually by calling one of their methods.
 ### b. When to use Observer pattern
 
 ### c. Actors
-* Subject -> Interface/Abstract Notifies interested observers when an event occurs. Allows Observer to subscribe/unsubscribe.
+* Subject (Observable) -> Interface/Abstract Notifies interested observers when an event occurs. Allows Observer to subscribe/unsubscribe.
 * Concrete Subject -> Implementation of Subject.
 * Observer -> Interface/Abstract class -> Defines a method to be called when the Subject wants to notify observers
 * Concrete Observer -> Implementation of the observer. Registers to a subject, to be notified when a specific event happens