diff --git a/developer_guides/debugability/coredump-reader/index.rst b/developer_guides/debugability/coredump-reader/index.rst
index 71661c82..1ca6d5d2 100644
--- a/developer_guides/debugability/coredump-reader/index.rst
+++ b/developer_guides/debugability/coredump-reader/index.rst
@@ -3,6 +3,10 @@
 Coredump-reader
 ###############
 
+NOTE: These instructions do not work with SOF running on Zephyr,
+please refer to
+https://docs.zephyrproject.org/latest/services/debugging/coredump.html
+
 Tool for processing FW stack dumps. In verbose mode it prints the stack leading
 to the core dump including DSP registers and function calls.
 It outputs unwrapped gdb command function call addresses to human readable