diff --git a/src/blenderbim/blenderbim/bim/module/geometry/operator.py b/src/blenderbim/blenderbim/bim/module/geometry/operator.py
index 312ceed51a..aacb218c2e 100644
--- a/src/blenderbim/blenderbim/bim/module/geometry/operator.py
+++ b/src/blenderbim/blenderbim/bim/module/geometry/operator.py
@@ -926,7 +926,7 @@ class OverrideDuplicateMove(bpy.types.Operator):
                     if r.is_a("IfcRelAssignsToGroup")
                     if "BBIM_Linked_Aggregate" in r.RelatingGroup.Name
                 ]
-                tool.Ifc.run("group.unassign_group", group=linked_aggregate_group[0], product=new[0])
+                tool.Ifc.run("group.unassign_group", group=linked_aggregate_group[0], products=[new[0]])
 
 
 class OverrideDuplicateMoveLinkedMacro(bpy.types.Macro):