diff --git a/usr.sbin/acpi/acpidump/acpi_user.c b/usr.sbin/acpi/acpidump/acpi_user.c
--- a/usr.sbin/acpi/acpidump/acpi_user.c
+++ b/usr.sbin/acpi/acpidump/acpi_user.c
@@ -42,7 +42,7 @@
 
 #include "acpidump.h"
 
-static char	hint_acpi_0_rsdp[] = "hint.acpi.0.rsdp";
+static char	acpi_rsdp[] = "acpi.rsdp";
 static char	machdep_acpi_root[] = "machdep.acpi_root";
 static int      acpi_mem_fd = -1;
 
@@ -172,7 +172,7 @@
 	addr = 0;
 
 	/* Attempt to use kenv or sysctl to find RSD PTR record. */
-	if (kenv(KENV_GET, hint_acpi_0_rsdp, buf, 20) > 0)
+	if (kenv(KENV_GET, acpi_rsdp, buf, 20) > 0)
 		addr = strtoul(buf, NULL, 0);
 	if (addr == 0) {
 		len = sizeof(addr);