diff --git a/examples/concurrency.cc b/examples/concurrency.cc
index 67e7a0d..1f4721a 100644
--- a/examples/concurrency.cc
+++ b/examples/concurrency.cc
@@ -27,8 +27,7 @@ int main() {
      * implementing a 1:1 (kernel-level) scheduling - very expensive on
      * Windows, less expensive on Unix-likes (but more than coroutines)
      */
-    thread_scheduler tsched;
-    tsched.start([&foo]() {
+    thread_scheduler{}.start([&foo]() {
         writeln("(1) 1:1 scheduler: starting...");
         foo();
         writeln("(1) 1:1 scheduler: finishing...");
@@ -39,8 +38,7 @@ int main() {
      * per task, implementing N:1 (user-level) scheduling - very cheap
      * and portable everywhere but obviously limited to only one thread
      */
-    simple_coroutine_scheduler scsched;
-    scsched.start([&foo]() {
+    simple_coroutine_scheduler{}.start([&foo]() {
         writeln("(2) N:1 scheduler: starting...");
         foo();
         writeln("(2) N:1 scheduler: finishing...");
@@ -52,8 +50,7 @@ int main() {
      * a hybrid M:N approach - this benefits from multicore systems and
      * also is relatively cheap (you can create a big number of tasks)
      */
-    coroutine_scheduler csched;
-    csched.start([&foo]() {
+    coroutine_scheduler{}.start([&foo]() {
         writeln("(3) M:N scheduler: starting...");
         foo();
         writeln("(3) M:N scheduler: finishing...");