diff --git a/sys/dev/acpica/acpi_pci_link.c b/sys/dev/acpica/acpi_pci_link.c
--- a/sys/dev/acpica/acpi_pci_link.c
+++ b/sys/dev/acpica/acpi_pci_link.c
@@ -719,7 +719,7 @@
 	ACPI_RESOURCE *end, *res;
 	ACPI_STATUS status;
 	struct link *link;
-	int i, in_dpf;
+	int i __diagused, in_dpf;
 
 	/* Fetch the _CRS. */
 	ACPI_SERIAL_ASSERT(pci_link);
@@ -861,7 +861,7 @@
 	ACPI_BUFFER srsbuf;
 	ACPI_STATUS status;
 	struct link *link;
-	int i;
+	int i __diagused;
 
 	ACPI_SERIAL_ASSERT(pci_link);
 	sc = device_get_softc(dev);