diff --git a/subjects/declarations/README.md b/subjects/declarations/README.md
index ddbe3a65b..19fb113d2 100644
--- a/subjects/declarations/README.md
+++ b/subjects/declarations/README.md
@@ -15,7 +15,7 @@ Create the following constant variables:
   - arr: an array of the 3 values: 4, undefined, '2'
   - obj: an object with 3 property (str, num & bool)
 
-`nested` and `obj` must be frozen to prevent changes from them.
+`nested`, `arr` and `obj` must be frozen to prevent changes from them.
 
 ### Notions