1 files changed, 2 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/core_ext/object/instance_variables.rb b/activesupport/lib/active_support/core_ext/object/instance_variables.rb
index 40821fd619..593a7a4940 100644
--- a/activesupport/lib/active_support/core_ext/object/instance_variables.rb
+++ b/activesupport/lib/active_support/core_ext/object/instance_variables.rb
@@ -13,7 +13,7 @@ class Object
     Hash[instance_variables.map { |name| [name[1..-1], instance_variable_get(name)] }]
   end
 
-  # Returns an array of instance variable names including "@".
+  # Returns an array of instance variable names as strings including "@".
   #
   #   class C
   #     def initialize(x, y)
@@ -23,6 +23,6 @@ class Object
   #
   #   C.new(0, 1).instance_variable_names # => ["@y", "@x"]
   def instance_variable_names
-    instance_variables.map { |var| var.to_s }
+    instance_variables.map(&:to_s)
   end
 end