diff --git a/samples/subsys/tracing/README.txt b/samples/subsys/tracing/README.txt
index 7e5374604f8..ef7e8d8ddae 100644
--- a/samples/subsys/tracing/README.txt
+++ b/samples/subsys/tracing/README.txt
@@ -18,6 +18,9 @@ or:
 
     cmake -DBOARD=mps2_an521 -DCONF_FILE=prj_uart_ctf.conf ..
 
+NOTE: You may need to set 'zephyr,tracing-uart' property under the chosen
+node in your devicetree.  See boards/mps2_an521.overlay for an example.
+
 After the application has run for a while, check the trace output file.
 
 --------------------------------------------------------------------------------
diff --git a/samples/subsys/tracing/boards/mps2_an521.overlay b/samples/subsys/tracing/boards/mps2_an521.overlay
new file mode 100644
index 00000000000..b241804571e
--- /dev/null
+++ b/samples/subsys/tracing/boards/mps2_an521.overlay
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+/ {
+       chosen {
+               zephyr,tracing-uart = &uart1;
+       };
+};