diff --git a/src/mainboard/purism/librem_cnl/variants/librem_mini/devicetree.cb b/src/mainboard/purism/librem_cnl/variants/librem_mini/devicetree.cb
index e2135b7fa9..e8cc1e4f84 100644
--- a/src/mainboard/purism/librem_cnl/variants/librem_mini/devicetree.cb
+++ b/src/mainboard/purism/librem_cnl/variants/librem_mini/devicetree.cb
@@ -202,7 +202,6 @@ chip soc/intel/cannonlake
 		device pci 1d.0 off end # PCI Express Port 9
 		device pci 1d.1 on	# PCI Express Port 10
 			device pci 00.0 on end # x1 (LAN)
-			register "PcieRpSlotImplemented[9]" = "1"
 			register "PcieRpEnable[9]" = "1"
 			register "PcieClkSrcUsage[3]" = "9"
 			register "PcieClkSrcClkReq[3]" = "3"