diff --git a/sys/dev/acpica/acpi.c b/sys/dev/acpica/acpi.c
index 7b79995fe22c..286d870d5966 100644
--- a/sys/dev/acpica/acpi.c
+++ b/sys/dev/acpica/acpi.c
@@ -891,10 +891,9 @@ acpi_alloc_resource(device_t bus, device_t child, int type, int *rid,
 	if (res == NULL)
 	    return (NULL);
 
-	/* Copy the bus tag from the pre-allocated resource. */
+	/* Copy the bus tag and handle from the pre-allocated resource. */
 	rman_set_bustag(res, rman_get_bustag(rle->res));
-	if (type == SYS_RES_IOPORT)
-	    rman_set_bushandle(res, res->r_start);
+	rman_set_bushandle(res, rman_get_bushandle(res));
 
 	/* If requested, activate the resource using the parent's method. */
 	if (flags & RF_ACTIVE)