diff --git a/test/TestUnit/test/ruby/test_regexp.rb b/test/TestUnit/test/ruby/test_regexp.rb
index f1366fd2..cd5e514d 100644
--- a/test/TestUnit/test/ruby/test_regexp.rb
+++ b/test/TestUnit/test/ruby/test_regexp.rb
@@ -736,22 +736,22 @@ class TestRegexp < Test::Unit::TestCase
     assert_raise(TypeError) { Regexp.allocate.names }
     assert_raise(TypeError) { Regexp.allocate.named_captures }
 
-    # assert_raise(TypeError) { MatchData.allocate.regexp }
-    # assert_raise(TypeError) { MatchData.allocate.names }
-    # assert_raise(TypeError) { MatchData.allocate.size }
-    # assert_raise(TypeError) { MatchData.allocate.length }
-    # assert_raise(TypeError) { MatchData.allocate.offset(0) }
-    # assert_raise(TypeError) { MatchData.allocate.begin(0) }
-    # assert_raise(TypeError) { MatchData.allocate.end(0) }
-    # assert_raise(TypeError) { MatchData.allocate.to_a }
-    # assert_raise(TypeError) { MatchData.allocate[:foo] }
-    # assert_raise(TypeError) { MatchData.allocate.captures }
-    # assert_raise(TypeError) { MatchData.allocate.values_at }
-    # assert_raise(TypeError) { MatchData.allocate.pre_match }
-    # assert_raise(TypeError) { MatchData.allocate.post_match }
-    # assert_raise(TypeError) { MatchData.allocate.to_s }
-    # assert_match(/^#<MatchData:.*>$/, MatchData.allocate.inspect)
-    # assert_raise(TypeError) { MatchData.allocate.string }
+    assert_raise(TypeError) { MatchData.allocate.regexp }
+    assert_raise(TypeError) { MatchData.allocate.names }
+    assert_raise(TypeError) { MatchData.allocate.size }
+    assert_raise(TypeError) { MatchData.allocate.length }
+    assert_raise(TypeError) { MatchData.allocate.offset(0) }
+    assert_raise(TypeError) { MatchData.allocate.begin(0) }
+    assert_raise(TypeError) { MatchData.allocate.end(0) }
+    assert_raise(TypeError) { MatchData.allocate.to_a }
+    assert_raise(TypeError) { MatchData.allocate[:foo] }
+    assert_raise(TypeError) { MatchData.allocate.captures }
+    assert_raise(TypeError) { MatchData.allocate.values_at }
+    assert_raise(TypeError) { MatchData.allocate.pre_match }
+    assert_raise(TypeError) { MatchData.allocate.post_match }
+    assert_raise(TypeError) { MatchData.allocate.to_s }
+    assert_match(/^#<MatchData:.*>$/, MatchData.allocate.inspect)
+    assert_raise(TypeError) { MatchData.allocate.string }
     # $~ = MatchData.allocate
     # assert_raise(TypeError) { $& }
     # assert_raise(TypeError) { $` }