diff --git a/check-health b/check-health
index ec89545..bf0e441 100644
--- a/check-health
+++ b/check-health
@@ -18,6 +18,7 @@
 :global Identity;
 
 :global LogPrintExit2;
+:global ScriptLock;
 :global SendNotification2;
 :global SymbolForNotification;
 
@@ -36,6 +37,8 @@
   :set CheckHealthTemperatureNotified [ :toarray "" ];
 }
 
+$ScriptLock $0;
+
 :foreach Name,Voltage in=$CheckHealthCurrent do={
   :if ($Name ~ "(battery|voltage)" && \
        [ :typeof ($CheckHealthLast->$Name) ] = "num" && \