diff --git a/acpi.adoc b/acpi.adoc
index 18e58b3..0403b3c 100644
--- a/acpi.adoc
+++ b/acpi.adoc
@@ -33,7 +33,7 @@ available to an OS loader via the standard `UEFI EFI_GRAPHICS_OUTPUT_PROTOCOL` i
  * Revision 4 or later of SPCR.
  * For NS16550-compatible UARTs:
  ** Use `Interface Type` 0x12 (16550-compatible with parameters defined in Generic Address Structure).
- ** There MUST be a matching AML device object with compatible ID `RSCV0003`.
+ ** There MUST be a matching AML device object with `_HID` (Hardware ID) or `_CID` (Compatibility ID) `RSCV0003`.
 2+| _See <<acpi-guidance-spcr, additional guidance>>_.
 | [[acpi-namespace-dev]]`ACPI_080` | PLIC/APLIC namespace devices MUST
 be present in the ACPI namespace whenever corresponding MADT entries are
diff --git a/non-normative/acpi.adoc b/non-normative/acpi.adoc
index 3867673..2feb3b2 100644
--- a/non-normative/acpi.adoc
+++ b/non-normative/acpi.adoc
@@ -150,7 +150,7 @@ and <<acpi-irq-gsb, `AML_090`>> requirements.
 
 On some architectures, it became an industry accepted norm to describe PCIe implementations not compliant to the _PCI Firmware Specification_ cite:[PCIFW]
 using specification-defined ACPI tables and objects. RISC-V systems compliant to the BRS must only expose ECAM-compatible implementations using the
-MCFG and the standard AML Hardware ID (`_HID`) `PNP0A08` and Compatible ID (`_CID`) `PNP0A03`, and must not rely on ACPI table header information or other out-of-band means of detecting quirked behavior.
+MCFG and the standard AML Hardware ID (`_HID`) `PNP0A08` and Compatibility ID (`_CID`) `PNP0A03`, and must not rely on ACPI table header information or other out-of-band means of detecting quirked behavior.
 
 Some minor incompatibilities, such as incorrect CFG0 filtering, broken BARs/capabilities for RCs, embedded switches/bridges
 or embedded endpoints can be handled by emulating ECAM accesses in privileged firmware (e.g. M-mode) or similar facilities (e.g. a hypervisor).