diff --git a/sys/dev/acpica5/acpi_acad.c b/sys/dev/acpica5/acpi_acad.c
index 3ecba02..4f6b2ab 100644
--- a/sys/dev/acpica5/acpi_acad.c
+++ b/sys/dev/acpica5/acpi_acad.c
@@ -246,7 +246,7 @@ acpi_acad_init_acline(void *arg)
 	acpi_acad_get_status(dev);
 	if (status != sc->status)
 	    break;
-	AcpiOsSleep(10);
+	AcpiOsSleep(10000);
     }
 
     sc->initializing = 0;
diff --git a/sys/dev/acpica5/acpi_cmbat.c b/sys/dev/acpica5/acpi_cmbat.c
index 186a8c8..6677311 100644
--- a/sys/dev/acpica5/acpi_cmbat.c
+++ b/sys/dev/acpica5/acpi_cmbat.c
@@ -581,7 +581,7 @@ acpi_cmbat_init_battery(void *arg)
     ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
 		"battery initialization start\n");
 
-    for (retry = 0; retry < ACPI_CMBAT_RETRY_MAX; retry++, AcpiOsSleep(10)) {
+    for (retry = 0; retry < ACPI_CMBAT_RETRY_MAX; retry++, AcpiOsSleep(10000)) {
 	sc->present = acpi_BatteryIsPresent(dev);
 	if (!sc->present)
 	    continue;