diff --git a/kibot/out_pdf.py b/kibot/out_pdf.py
index 56d085c2..067ecf81 100644
--- a/kibot/out_pdf.py
+++ b/kibot/out_pdf.py
@@ -8,6 +8,8 @@
 from pcbnew import (PLOT_FORMAT_PDF, FromMM, ToMM)
 from .out_any_layer import AnyLayer
 from .drill_marks import DrillMarks
+from .gs import GS
+from .misc import KICAD_VERSION_5_99
 from .macros import macros, document, output_class  # noqa: F401
 from . import log
 
diff --git a/kibot/out_ps.py b/kibot/out_ps.py
index 6af6475a..09c4a35a 100644
--- a/kibot/out_ps.py
+++ b/kibot/out_ps.py
@@ -9,6 +9,8 @@ from pcbnew import (PLOT_FORMAT_POST, FromMM, ToMM)  # , SKETCH, FILLED Bug: htt
 from .misc import AUTO_SCALE
 from .out_any_layer import AnyLayer
 from .drill_marks import DrillMarks
+from .gs import GS
+from .misc import KICAD_VERSION_5_99
 from .macros import macros, document, output_class  # noqa: F401
 
 # From kicad/include/outline_mode.h KiCad 5.99 is missing:
diff --git a/kibot/out_svg.py b/kibot/out_svg.py
index f8f8b6b9..594b2938 100644
--- a/kibot/out_svg.py
+++ b/kibot/out_svg.py
@@ -8,6 +8,8 @@
 from pcbnew import (PLOT_FORMAT_SVG, FromMM, ToMM)
 from .out_any_layer import AnyLayer
 from .drill_marks import DrillMarks
+from .gs import GS
+from .misc import KICAD_VERSION_5_99
 from .macros import macros, document, output_class  # noqa: F401