diff --git a/src/BtChokeMessage.cc b/src/BtChokeMessage.cc
index 7d75df02..066e8b26 100644
--- a/src/BtChokeMessage.cc
+++ b/src/BtChokeMessage.cc
@@ -60,29 +60,4 @@ void BtChokeMessage::doReceivedAction()
   getBtRequestFactory()->doChokedAction();
 }
 
-bool BtChokeMessage::sendPredicate() const { return !getPeer()->amChoking(); }
-
-namespace {
-struct ThisProgressUpdate : public ProgressUpdate {
-  ThisProgressUpdate(std::shared_ptr<Peer> peer, BtMessageDispatcher* disp)
-      : peer(std::move(peer)), disp(disp)
-  {
-  }
-  virtual void update(size_t length, bool complete) CXX11_OVERRIDE
-  {
-    if (complete) {
-      peer->amChoking(true);
-      disp->doChokingAction();
-    }
-  }
-  std::shared_ptr<Peer> peer;
-  BtMessageDispatcher* disp;
-};
-} // namespace
-
-std::unique_ptr<ProgressUpdate> BtChokeMessage::getProgressUpdate()
-{
-  return make_unique<ThisProgressUpdate>(getPeer(), getBtMessageDispatcher());
-}
-
 } // namespace aria2
diff --git a/src/BtChokeMessage.h b/src/BtChokeMessage.h
index 3ad96dd1..70675fc1 100644
--- a/src/BtChokeMessage.h
+++ b/src/BtChokeMessage.h
@@ -51,10 +51,6 @@ public:
 
   static std::unique_ptr<BtChokeMessage> create(const unsigned char* data,
                                                 size_t dataLength);
-
-  virtual bool sendPredicate() const CXX11_OVERRIDE;
-
-  virtual std::unique_ptr<ProgressUpdate> getProgressUpdate() CXX11_OVERRIDE;
 };
 
 } // namespace aria2
diff --git a/src/BtUnchokeMessage.cc b/src/BtUnchokeMessage.cc
index cc9e203a..55938851 100644
--- a/src/BtUnchokeMessage.cc
+++ b/src/BtUnchokeMessage.cc
@@ -56,24 +56,4 @@ void BtUnchokeMessage::doReceivedAction()
   getPeer()->peerChoking(false);
 }
 
-bool BtUnchokeMessage::sendPredicate() const { return getPeer()->amChoking(); }
-
-namespace {
-struct ThisProgressUpdate : public ProgressUpdate {
-  ThisProgressUpdate(std::shared_ptr<Peer> peer) : peer(std::move(peer)) {}
-  virtual void update(size_t length, bool complete) CXX11_OVERRIDE
-  {
-    if (complete) {
-      peer->amChoking(false);
-    }
-  }
-  std::shared_ptr<Peer> peer;
-};
-} // namespace
-
-std::unique_ptr<ProgressUpdate> BtUnchokeMessage::getProgressUpdate()
-{
-  return make_unique<ThisProgressUpdate>(getPeer());
-}
-
 } // namespace aria2
diff --git a/src/BtUnchokeMessage.h b/src/BtUnchokeMessage.h
index bd9e6109..409e2207 100644
--- a/src/BtUnchokeMessage.h
+++ b/src/BtUnchokeMessage.h
@@ -54,10 +54,6 @@ public:
                                                   size_t dataLength);
 
   virtual void doReceivedAction() CXX11_OVERRIDE;
-
-  virtual bool sendPredicate() const CXX11_OVERRIDE;
-
-  virtual std::unique_ptr<ProgressUpdate> getProgressUpdate() CXX11_OVERRIDE;
 };
 
 } // namespace aria2
diff --git a/src/DefaultBtInteractive.cc b/src/DefaultBtInteractive.cc
index c74d8e7a..d3e6d0a4 100644
--- a/src/DefaultBtInteractive.cc
+++ b/src/DefaultBtInteractive.cc
@@ -251,11 +251,14 @@ void DefaultBtInteractive::decideChoking()
 {
   if (peer_->shouldBeChoking()) {
     if (!peer_->amChoking()) {
+      peer_->amChoking(true);
+      dispatcher_->doChokingAction();
       dispatcher_->addMessageToQueue(messageFactory_->createChokeMessage());
     }
   }
   else {
     if (peer_->amChoking()) {
+      peer_->amChoking(false);
       dispatcher_->addMessageToQueue(messageFactory_->createUnchokeMessage());
     }
   }
diff --git a/test/BtChokeMessageTest.cc b/test/BtChokeMessageTest.cc
index debd2530..0dafc82f 100644
--- a/test/BtChokeMessageTest.cc
+++ b/test/BtChokeMessageTest.cc
@@ -19,7 +19,6 @@ class BtChokeMessageTest : public CppUnit::TestFixture {
   CPPUNIT_TEST(testCreate);
   CPPUNIT_TEST(testCreateMessage);
   CPPUNIT_TEST(testDoReceivedAction);
-  CPPUNIT_TEST(testOnSendComplete);
   CPPUNIT_TEST(testToString);
   CPPUNIT_TEST_SUITE_END();
 
@@ -36,7 +35,6 @@ public:
   void testCreate();
   void testCreateMessage();
   void testDoReceivedAction();
-  void testOnSendComplete();
   void testToString();
 
   class MockBtMessageDispatcher2 : public MockBtMessageDispatcher {
@@ -130,21 +128,6 @@ void BtChokeMessageTest::testDoReceivedAction()
   CPPUNIT_ASSERT(peer->peerChoking());
 }
 
-void BtChokeMessageTest::testOnSendComplete()
-{
-  BtChokeMessage msg;
-  msg.setPeer(peer);
-
-  auto dispatcher = make_unique<MockBtMessageDispatcher2>();
-  msg.setBtMessageDispatcher(dispatcher.get());
-
-  auto pu = std::unique_ptr<ProgressUpdate>{msg.getProgressUpdate()};
-  pu->update(0, true);
-
-  CPPUNIT_ASSERT(dispatcher->doChokingActionCalled);
-  CPPUNIT_ASSERT(peer->amChoking());
-}
-
 void BtChokeMessageTest::testToString()
 {
   BtChokeMessage msg;
diff --git a/test/BtUnchokeMessageTest.cc b/test/BtUnchokeMessageTest.cc
index 1fe0bbe9..d01266f8 100644
--- a/test/BtUnchokeMessageTest.cc
+++ b/test/BtUnchokeMessageTest.cc
@@ -15,7 +15,6 @@ class BtUnchokeMessageTest : public CppUnit::TestFixture {
   CPPUNIT_TEST(testCreate);
   CPPUNIT_TEST(testCreateMessage);
   CPPUNIT_TEST(testDoReceivedAction);
-  CPPUNIT_TEST(testOnSendComplete);
   CPPUNIT_TEST(testToString);
   CPPUNIT_TEST_SUITE_END();
 
@@ -26,7 +25,6 @@ public:
   void testCreate();
   void testCreateMessage();
   void testDoReceivedAction();
-  void testOnSendComplete();
   void testToString();
 };
 
@@ -82,20 +80,6 @@ void BtUnchokeMessageTest::testDoReceivedAction()
   CPPUNIT_ASSERT(!peer->peerChoking());
 }
 
-void BtUnchokeMessageTest::testOnSendComplete()
-{
-  std::shared_ptr<Peer> peer(new Peer("host", 6969));
-  peer->allocateSessionResource(1_k, 1_m);
-  peer->amChoking(true);
-  BtUnchokeMessage msg;
-  msg.setPeer(peer);
-
-  CPPUNIT_ASSERT(peer->amChoking());
-  std::shared_ptr<ProgressUpdate> pu(msg.getProgressUpdate());
-  pu->update(0, true);
-  CPPUNIT_ASSERT(!peer->amChoking());
-}
-
 void BtUnchokeMessageTest::testToString()
 {
   BtUnchokeMessage msg;