diff --git a/src/mainboard/google/brya/variants/taeko/overridetree.cb b/src/mainboard/google/brya/variants/taeko/overridetree.cb
index cc055ba..20f78b4 100644
--- a/src/mainboard/google/brya/variants/taeko/overridetree.cb
+++ b/src/mainboard/google/brya/variants/taeko/overridetree.cb
@@ -536,6 +536,7 @@
 				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D11)"
 				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_B4)"
 				register "srcclk_pin" = "0"
+				register "ext_pm_support" = "ACPI_PCIE_RP_EMIT_ALL"
 				device generic 0 on
 					probe BOOT_EMMC_MASK BOOT_EMMC_ENABLED
 				end