diff --git a/lib/minitest/mock.rb b/lib/minitest/mock.rb
index e7c88490..bc07671a 100644
--- a/lib/minitest/mock.rb
+++ b/lib/minitest/mock.rb
@@ -109,7 +109,7 @@ def verify
       true
     end
 
-    def method_missing(sym, *args) # :nodoc:
+    def method_missing(sym, *args, &block) # :nodoc:
       unless @expected_calls.has_key?(sym) then
         raise NoMethodError, "unmocked method %p, expected one of %p" %
           [sym, @expected_calls.keys.sort_by(&:to_s)]
@@ -128,7 +128,7 @@ def method_missing(sym, *args) # :nodoc:
 
       if val_block then
         raise MockExpectationError, "mocked method %p failed block w/ %p" %
-          [sym, args] unless val_block.call(args)
+          [sym, args] unless val_block.call(*args, &block)
 
         # keep "verify" happy
         @actual_calls[sym] << expected_call
diff --git a/test/minitest/test_minitest_mock.rb b/test/minitest/test_minitest_mock.rb
index 88faf642..bf238504 100644
--- a/test/minitest/test_minitest_mock.rb
+++ b/test/minitest/test_minitest_mock.rb
@@ -265,6 +265,17 @@ def test_mock_block_is_passed_function_params
     assert mock.verify
   end
 
+  def test_mock_block_is_passed_function_block
+    mock = MiniTest::Mock.new
+    block = proc { 'bar' }
+    mock.expect :foo, nil do |arg, &blk|
+      arg == 'foo' &&
+      blk == block
+    end
+    mock.foo 'foo', &block
+    assert mock.verify
+  end
+
   def test_verify_fails_when_mock_block_returns_false
     mock = Minitest::Mock.new
     mock.expect :foo, nil do