diff --git a/src/mainboard/protectli/vault_bsw/Kconfig b/src/mainboard/protectli/vault_bsw/Kconfig
index 5877f8486c..e169392d6a 100644
--- a/src/mainboard/protectli/vault_bsw/Kconfig
+++ b/src/mainboard/protectli/vault_bsw/Kconfig
@@ -1,8 +1,5 @@
 if BOARD_PROTECTLI_FW2B || BOARD_PROTECTLI_FW4B
 
-config IGNORE_IASL_MISSING_DEPENDENCY
-	def_bool y
-
 config BOARD_SPECIFIC_OPTIONS
 	def_bool y
 	select BOARD_ROMSIZE_KB_8192
diff --git a/src/mainboard/protectli/vault_bsw/acpi/superio.asl b/src/mainboard/protectli/vault_bsw/acpi/superio.asl
index e51eb00603..40303e10f8 100644
--- a/src/mainboard/protectli/vault_bsw/acpi/superio.asl
+++ b/src/mainboard/protectli/vault_bsw/acpi/superio.asl
@@ -14,13 +14,4 @@ Device (COM1) {
 		FixedIO (0x03F8, 0x08)
 		IRQNoFlags () {4}
 	})
-
-	Name (_PRS, ResourceTemplate ()
-	{
-		StartDependentFn (0, 0) {
-			FixedIO (0x03F8, 0x08)
-			IRQNoFlags () {4}
-		}
-		EndDependentFn ()
-	})
 }