diff --git a/klayout_package/python/kqcircuits/elements/spiral_resonator_polygon.py b/klayout_package/python/kqcircuits/elements/spiral_resonator_polygon.py
index 0c1ca8990..ebc33e03c 100644
--- a/klayout_package/python/kqcircuits/elements/spiral_resonator_polygon.py
+++ b/klayout_package/python/kqcircuits/elements/spiral_resonator_polygon.py
@@ -31,6 +31,7 @@
 
 
 @add_parameters_from(AirbridgeMultiFace)
+@add_parameters_from(FlipChipConnectorRf, "connector_a", "connector_b", "round_connector")
 @add_parameters_from(WaveguideCoplanar, "term1", "term2")
 class SpiralResonatorPolygon(Element):
     """The PCell declaration for a polygon shaped spiral resonator.