diff --git a/kibot/out_bom.py b/kibot/out_bom.py
index e5798fff..e30c66cb 100644
--- a/kibot/out_bom.py
+++ b/kibot/out_bom.py
@@ -19,6 +19,7 @@ from .bom.bom import do_bom
 from .var_kibom import KiBoM
 from .fil_base import BaseFilter, apply_exclude_filter, apply_fitted_filter, apply_fixed_filter, reset_filters
 from . import log
+from .mcpyrate.debug import macros, step_expansion
 
 logger = log.get_logger(__name__)
 VALID_STYLES = {'modern-blue', 'modern-green', 'modern-red', 'classic'}
@@ -36,13 +37,14 @@ class BoMColumns(Optionable):
     def __init__(self):
         super().__init__()
         self._unkown_is_error = True
-        with document:
-            self.field = ''
-            """ Name of the field to use for this column """
-            self.name = ''
-            """ Name to display in the header. The field is used when empty """
-            self.join = Optionable
-            """ [list(string)|string=''] List of fields to join to this column """
+        with step_expansion:
+            with document:
+                self.field = ''
+                """ Name of the field to use for this column """
+                self.name = ''
+                """ Name to display in the header. The field is used when empty """
+                self.join = Optionable
+                """ [list(string)|string=''] List of fields to join to this column """
 
     def config(self):
         super().config()