diff --git a/freecad_workbench/freecad/robossembler/Frames.py b/freecad_workbench/freecad/robossembler/Frames.py
index d44d1b0..cd26ab8 100644
--- a/freecad_workbench/freecad/robossembler/Frames.py
+++ b/freecad_workbench/freecad/robossembler/Frames.py
@@ -2,7 +2,7 @@ import FreeCAD
 
 from . import ICONPATH, TRANSLATIONSPATH
 from .Tools import spawnClassCommand, placement2axisvec, describeSubObject, getPrimitiveInfo #, RobossemblerFreeCadExportScenario
-from pddl import freecad2pddl
+from .pddl import freecad2pddl
 from .BoMList import run_BoM_list
 from .export_entities import export_coordinate_systems
 from .utils.freecad_processor import process_file