diff --git a/src/g_editor.c b/src/g_editor.c
index 50bd5ca5051ddf09bcb577b7a11a99a7a6dbdc05..6a5c3d925eecf3ca0bb2a7c6d11e2775e5803644 100644
--- a/src/g_editor.c
+++ b/src/g_editor.c
@@ -3804,6 +3804,8 @@ static void canvas_find_again(t_canvas *x)
     }
 }
 
+/* following function serves mainly as a helper function for tcl/tk
+ and focuses first visible parent (not the immediate parent) */
 static void canvas_find_parent(t_canvas *x)
 {
     if (x->gl_owner) {