diff --git a/firmware/application/src/utils/fds_ids.h b/firmware/application/src/utils/fds_ids.h
index eb8e86b..0e35472 100644
--- a/firmware/application/src/utils/fds_ids.h
+++ b/firmware/application/src/utils/fds_ids.h
@@ -1,6 +1,11 @@
 #ifndef FDS_IDS_H
 #define FDS_IDS_H
 
+/**
+ * Warnning !!!
+ * The data area after 0xBFFF is reserved for use by Peer Manager
+ */
+
 /*
  * Card slot configuration, only one, consistent
  */