diff --git a/test/ruby/test_settracefunc.rb b/test/ruby/test_settracefunc.rb
index 597a888b84..0599ea2022 100644
--- a/test/ruby/test_settracefunc.rb
+++ b/test/ruby/test_settracefunc.rb
@@ -639,16 +639,19 @@ class TestSetTraceFunc < Test::Unit::TestCase
 
   def test_tracepoint_enable
     ary = []
+    args = nil
     trace = TracePoint.new(:call){|tp|
       next if !target_thread?
       ary << tp.method_id
     }
     foo
-    trace.enable{
+    trace.enable{|*a|
+      args = a
       foo
     }
     foo
     assert_equal([:foo], ary)
+    assert_equal([], args)
 
     trace = TracePoint.new{}
     begin
@@ -663,17 +666,20 @@ class TestSetTraceFunc < Test::Unit::TestCase
 
   def test_tracepoint_disable
     ary = []
+    args = nil
     trace = TracePoint.trace(:call){|tp|
       next if !target_thread?
       ary << tp.method_id
     }
     foo
-    trace.disable{
+    trace.disable{|*a|
+      args = a
       foo
     }
     foo
     trace.disable
     assert_equal([:foo, :foo], ary)
+    assert_equal([], args)
 
     trace = TracePoint.new{}
     trace.enable{
diff --git a/version.h b/version.h
index 3d404f2b9d..7ef9d44550 100644
--- a/version.h
+++ b/version.h
@@ -1,10 +1,10 @@
 #define RUBY_VERSION "2.4.4"
-#define RUBY_RELEASE_DATE "2018-03-07"
-#define RUBY_PATCHLEVEL 255
+#define RUBY_RELEASE_DATE "2018-03-08"
+#define RUBY_PATCHLEVEL 256
 
 #define RUBY_RELEASE_YEAR 2018
 #define RUBY_RELEASE_MONTH 3
-#define RUBY_RELEASE_DAY 7
+#define RUBY_RELEASE_DAY 8
 
 #include "ruby/version.h"
 
diff --git a/vm_trace.c b/vm_trace.c
index 02bf54e968..95ae19cc84 100644
--- a/vm_trace.c
+++ b/vm_trace.c
@@ -1103,7 +1103,7 @@ tracepoint_enable_m(VALUE tpval)
     rb_tracepoint_enable(tpval);
 
     if (rb_block_given_p()) {
-	return rb_ensure(rb_yield, Qnil,
+	return rb_ensure(rb_yield, Qundef,
 			 previous_tracing ? rb_tracepoint_enable : rb_tracepoint_disable,
 			 tpval);
     }
@@ -1154,7 +1154,7 @@ tracepoint_disable_m(VALUE tpval)
     rb_tracepoint_disable(tpval);
 
     if (rb_block_given_p()) {
-	return rb_ensure(rb_yield, Qnil,
+	return rb_ensure(rb_yield, Qundef,
 			 previous_tracing ? rb_tracepoint_enable : rb_tracepoint_disable,
 			 tpval);
     }