diff --git a/docs/specs/pci-ids.txt b/docs/specs/pci-ids.txt
index 5e407a6f32..dd6859d039 100644
--- a/docs/specs/pci-ids.txt
+++ b/docs/specs/pci-ids.txt
@@ -65,6 +65,7 @@ PCI devices (other than virtio):
 1b36:000f  mdpy (mdev sample device), linux/samples/vfio-mdev/mdpy.c
 1b36:0010  PCIe NVMe device (-device nvme)
 1b36:0011  PCI PVPanic device (-device pvpanic-pci)
+1b36:0012  PCI ACPI ERST device (-device acpi-erst)
 
 All these devices are documented in docs/specs.