diff --git a/lib/yard/code_objects/base.rb b/lib/yard/code_objects/base.rb
index afd697cee..5f5931e52 100644
--- a/lib/yard/code_objects/base.rb
+++ b/lib/yard/code_objects/base.rb
@@ -132,7 +132,7 @@ def push(value)
     # @see NamespaceMapper.register_separator
     class Base
       # The files the object was defined in. To add a file, use {#add_file}.
-      # @return [Array<Array<String, Integer>>] a list of files
+      # @return [Array<Array(String, Integer)>] a list of files
       # @see #add_file
       attr_reader :files