diff --git a/lib/rbi/model.rb b/lib/rbi/model.rb
index 76bd14b7..c54d89bc 100644
--- a/lib/rbi/model.rb
+++ b/lib/rbi/model.rb
@@ -353,7 +353,7 @@ class Attr < NodeWithComments
     abstract!
 
     sig { returns(T::Array[Symbol]) }
-    attr_accessor :names
+    attr_reader :names
 
     sig { returns(Visibility) }
     attr_accessor :visibility