diff --git a/kibot/out_render_3d.py b/kibot/out_render_3d.py
index 05389164..66d5d54b 100644
--- a/kibot/out_render_3d.py
+++ b/kibot/out_render_3d.py
@@ -3,6 +3,7 @@
 # Copyright (c) 2021 Instituto Nacional de Tecnología Industrial
 # License: GPL-3.0
 # Project: KiBot (formerly KiPlot)
+# KiCad 6 bug: https://gitlab.com/kicad/code/kicad/-/issues/9890
 import os
 from glob import glob
 from shutil import rmtree
diff --git a/kibot/out_step.py b/kibot/out_step.py
index 7bda9f59..a858a768 100644
--- a/kibot/out_step.py
+++ b/kibot/out_step.py
@@ -3,6 +3,7 @@
 # Copyright (c) 2020-2021 Instituto Nacional de Tecnología Industrial
 # License: GPL-3.0
 # Project: KiBot (formerly KiPlot)
+# KiCad 6 bug: https://gitlab.com/kicad/code/kicad/-/issues/10075
 import re
 import os
 from glob import glob