diff --git a/test/ruby/test_settracefunc.rb b/test/ruby/test_settracefunc.rb
index 90cc14c64f..c098e548b8 100644
--- a/test/ruby/test_settracefunc.rb
+++ b/test/ruby/test_settracefunc.rb
@@ -54,14 +54,10 @@ class TestSetTraceFunc < Test::Unit::TestCase
                  events.shift)
     assert_equal(["line", 4, __method__, self.class],
                  events.shift)
-    assert_equal(["c-call", 4, :core_define_method, RubyVM::FrozenCore],
-                 events.shift)
     assert_equal(["c-call", 4, :method_added, Module],
                  events.shift)
     assert_equal(["c-return", 4, :method_added, Module],
                  events.shift)
-    assert_equal(["c-return", 4, :core_define_method, RubyVM::FrozenCore],
-                 events.shift)
     assert_equal(["line", 7, __method__, self.class],
                  events.shift)
     assert_equal(["call", 6, :add, self.class],
@@ -106,14 +102,10 @@ class TestSetTraceFunc < Test::Unit::TestCase
                  events.shift)
     assert_equal(["line", 5, nil, nil],
                  events.shift)
-    assert_equal(["c-call", 5, :core_define_method, RubyVM::FrozenCore],
-                 events.shift)
     assert_equal(["c-call", 5, :method_added, Module],
                  events.shift)
     assert_equal(["c-return", 5, :method_added, Module],
                  events.shift)
-    assert_equal(["c-return", 5, :core_define_method, RubyVM::FrozenCore],
-                 events.shift)
     assert_equal(["end", 7, nil, nil],
                  events.shift)
     assert_equal(["line", 8, __method__, self.class],