diff --git a/src/mainboard/system76/rpl/variants/serw13/overridetree.cb b/src/mainboard/system76/rpl/variants/serw13/overridetree.cb
index 9f6195393d..140f5e7ea7 100644
--- a/src/mainboard/system76/rpl/variants/serw13/overridetree.cb
+++ b/src/mainboard/system76/rpl/variants/serw13/overridetree.cb
@@ -90,7 +90,7 @@ chip soc/intel/alderlake
 			register "pch_pcie_rp[PCH_RP(21)]" = "{
 				.clk_src = 5,
 				.clk_req = 5,
-				.flags = PCIE_RP_LTR | PCIE_RP_AER,
+				.flags = PCIE_RP_LTR, // XXX: AER spews warnings
 			}"
 		end