diff --git a/examples/asio-cl.cc b/examples/asio-cl.cc
index c7d7bb19..81b6274f 100644
--- a/examples/asio-cl.cc
+++ b/examples/asio-cl.cc
@@ -67,14 +67,14 @@ int main(int argc, char *argv[]) {
         return;
       }
 
-      req->on_response([&sess](const response &res) {
+      req->on_response([](const response &res) {
         std::cerr << "HTTP/2 " << res.status_code() << std::endl;
         for (auto &kv : res.header()) {
           std::cerr << kv.first << ": " << kv.second.value << "\n";
         }
         std::cerr << std::endl;
 
-        res.on_data([&sess](const uint8_t *data, std::size_t len) {
+        res.on_data([](const uint8_t *data, std::size_t len) {
           std::cerr.write(reinterpret_cast<const char *>(data), len);
           std::cerr << std::endl;
         });
diff --git a/examples/asio-cl2.cc b/examples/asio-cl2.cc
index 2a8ed716..5f6598b2 100644
--- a/examples/asio-cl2.cc
+++ b/examples/asio-cl2.cc
@@ -91,17 +91,17 @@ int main(int argc, char *argv[]) {
         return;
       }
 
-      req->on_response([&sess, req](const response &res) {
+      req->on_response([](const response &res) {
         std::cerr << "response header was received" << std::endl;
         print_header(res);
 
-        res.on_data([&sess](const uint8_t *data, std::size_t len) {
+        res.on_data([](const uint8_t *data, std::size_t len) {
           std::cerr.write(reinterpret_cast<const char *>(data), len);
           std::cerr << std::endl;
         });
       });
 
-      req->on_close([&sess](uint32_t error_code) {
+      req->on_close([](uint32_t error_code) {
         std::cerr << "request done with error_code=" << error_code << std::endl;
       });