diff --git a/kibot/gs.py b/kibot/gs.py
index dc1b822e..7b1564cc 100644
--- a/kibot/gs.py
+++ b/kibot/gs.py
@@ -273,6 +273,12 @@ class GS(object):
     def zones():
         return pcbnew.ZONES() if GS.ki6() else pcbnew.ZONE_CONTAINERS()
 
+    @staticmethod
+    def layers_contains(layers, id):
+        if GS.ki6():
+            return layers.Contains(id)
+        return id in layers.Seq()
+
     @staticmethod
     def expand_text_variables(text, extra_vars=None):
         vars = GS.load_pro_variables()
diff --git a/kibot/out_pcb_print.py b/kibot/out_pcb_print.py
index 6ad9d60d..bd359169 100644
--- a/kibot/out_pcb_print.py
+++ b/kibot/out_pcb_print.py
@@ -532,7 +532,7 @@ class PCB_PrintOptions(VariantOptions):
                 if dr.x:
                     continue
                 layers = pad.GetLayerSet()
-                if layers.Contains(id):
+                if GS.layers_contains(layers, id):
                     layers.removeLayer(id)
                     pad.SetLayerSet(layers)
                     removed.append(pad)
@@ -592,7 +592,7 @@ class PCB_PrintOptions(VariantOptions):
                     moved.append(gi)
             for pad in m.Pads():
                 layers = pad.GetLayerSet()
-                if layers.Contains(id):
+                if GS.layers_contains(layers, id):
                     layers.removeLayer(id)
                     pad.SetLayerSet(layers)
                     removed.append(pad)