diff --git a/src/laser_diode/ld_pwr_exc_protector.rs b/src/laser_diode/ld_pwr_exc_protector.rs
index 1494909..4a9259d 100644
--- a/src/laser_diode/ld_pwr_exc_protector.rs
+++ b/src/laser_diode/ld_pwr_exc_protector.rs
@@ -270,7 +270,8 @@ impl LdPwrExcProtector {
     pub fn pwr_off() {
         if let Some(ref mut wdg) = LdPwrExcProtector::get() {
             wdg.alarm_status.pwr_engaged = false;
-            wdg.phy.pwr_en_ch0.set_low()
+            wdg.phy.pwr_en_ch0.set_low();
+            LdPwrExcProtector::disable_watchdog_interrupt();
         }
     }