diff --git a/libs/WindowManager/Shell/tests/flicker/AndroidTest.xml b/libs/WindowManager/Shell/tests/flicker/AndroidTest.xml
index 2d6e8f54b6b64..d8ea0a52e6512 100644
--- a/libs/WindowManager/Shell/tests/flicker/AndroidTest.xml
+++ b/libs/WindowManager/Shell/tests/flicker/AndroidTest.xml
@@ -13,6 +13,8 @@
         <option name="run-command" value="cmd window tracing level all" />
         <!-- set WM tracing to frame (avoid incomplete states) -->
         <option name="run-command" value="cmd window tracing frame" />
+        <!-- set Layer tracing buffer size to 50mb -->
+        <option name="run-command" value="su root service call SurfaceFlinger 1029 i32 51200" />
         <!-- ensure lock screen mode is swipe -->
         <option name="run-command" value="locksettings set-disabled false" />
         <!-- restart launcher to activate TAPL -->
diff --git a/tests/FlickerTests/AndroidTest.xml b/tests/FlickerTests/AndroidTest.xml
index d91aa1ebe8f56..03eb462267cb8 100644
--- a/tests/FlickerTests/AndroidTest.xml
+++ b/tests/FlickerTests/AndroidTest.xml
@@ -13,6 +13,8 @@
         <option name="run-command" value="cmd window tracing level all" />
         <!-- set WM tracing to frame (avoid incomplete states) -->
         <option name="run-command" value="cmd window tracing frame" />
+        <!-- set Layer tracing buffer size to 50mb -->
+        <option name="run-command" value="su root service call SurfaceFlinger 1029 i32 51200" />
         <!-- ensure lock screen mode is swipe -->
         <option name="run-command" value="locksettings set-disabled false" />
         <!-- restart launcher to activate TAPL -->