diff --git a/CHANGELOG.md b/CHANGELOG.md
index 87949ea5..ca4056aa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 Version 281:
 
 * Travis builds docs
+* Fix echo-op test
 
 --------------------------------------------------------------------------------
 
diff --git a/example/echo-op/echo_op.cpp b/example/echo-op/echo_op.cpp
index 7ace0818..475940be 100644
--- a/example/echo-op/echo_op.cpp
+++ b/example/echo-op/echo_op.cpp
@@ -332,6 +332,7 @@ async_echo(
 
 struct move_only_handler
 {
+    move_only_handler() = default;
     move_only_handler(move_only_handler&&) = default;
     move_only_handler(move_only_handler const&) = delete;