diff --git a/various-tools/stage_param_structure_wip.txt b/various-tools/stage_param_structure_wip.txt
index 5cdf4f5..be2beeb 100644
--- a/various-tools/stage_param_structure_wip.txt
+++ b/various-tools/stage_param_structure_wip.txt
@@ -8,7 +8,7 @@ START OF FILE 2 BYTE
 
 64 75 6D 6D 79 (dummy) song name en
 
-03 F6 auto-incrementing ID
+03 F6 image id on the grid
 
 05 length of next field