diff --git a/ihp-sg13g2/libs.tech/klayout/tech/lvs/rule_decks/mos_derivations.lvs b/ihp-sg13g2/libs.tech/klayout/tech/lvs/rule_decks/mos_derivations.lvs
index 9dead314..0f3121fd 100644
--- a/ihp-sg13g2/libs.tech/klayout/tech/lvs/rule_decks/mos_derivations.lvs
+++ b/ihp-sg13g2/libs.tech/klayout/tech/lvs/rule_decks/mos_derivations.lvs
@@ -29,6 +29,7 @@ mos_exclude = pwell_block.join(nsd_drw).join(trans_drw)
                 .join(activ_mask).join(recog_diode).join(recog_esd)
                 .join(ind_drw).join(ind_pin).join(ind_drw)
                 .join(substrate_drw).join(nsd_block)
+                .join(gatpoly_filler.not_overlapping(cont_drw.and(metal1_drw)))
 
 # ==== General FETs & RF-FETs =====