diff --git a/lib/ostruct.rb b/lib/ostruct.rb
index f51eb7b5db..3a1cde4322 100644
--- a/lib/ostruct.rb
+++ b/lib/ostruct.rb
@@ -127,6 +127,7 @@ class OpenStruct
   def each_pair
     return to_enum(__method__) { @table.size } unless block_given?
     @table.each_pair{|p| yield p}
+    self
   end
 
   #
diff --git a/test/ostruct/test_ostruct.rb b/test/ostruct/test_ostruct.rb
index 14bc2b2da8..9b76dabeff 100644
--- a/test/ostruct/test_ostruct.rb
+++ b/test/ostruct/test_ostruct.rb
@@ -111,6 +111,7 @@ class TC_OpenStruct < Test::Unit::TestCase
   def test_each_pair
     h = {name: "John Smith", age: 70, pension: 300}
     os = OpenStruct.new(h)
+    assert_same os, os.each_pair{ }
     assert_equal '#<Enumerator: #<OpenStruct name="John Smith", age=70, pension=300>:each_pair>', os.each_pair.inspect
     assert_equal [[:name, "John Smith"], [:age, 70], [:pension, 300]], os.each_pair.to_a
     assert_equal 3, os.each_pair.size
diff --git a/version.h b/version.h
index 9456b9f39b..32c348455a 100644
--- a/version.h
+++ b/version.h
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.2.7"
 #define RUBY_RELEASE_DATE "2017-03-26"
-#define RUBY_PATCHLEVEL 432
+#define RUBY_PATCHLEVEL 433
 
 #define RUBY_RELEASE_YEAR 2017
 #define RUBY_RELEASE_MONTH 3