diff --git a/AsbCloudInfrastructure/Services/Subsystems/SubsystemService.cs b/AsbCloudInfrastructure/Services/Subsystems/SubsystemService.cs
index e2ab1e13..76bcefa2 100644
--- a/AsbCloudInfrastructure/Services/Subsystems/SubsystemService.cs
+++ b/AsbCloudInfrastructure/Services/Subsystems/SubsystemService.cs
@@ -157,8 +157,8 @@ internal class SubsystemService : ISubsystemService
             SumDepthInterval = sumDepthInterval,
             OperationCount = operationCount,
         };
-
-        oscillationStat.KUsage = oscillationStat.SumDepthInterval / oscillationStat.SumOperationDepthInterval;
+        if(oscillationStat.SumOperationDepthInterval != 0d)
+            oscillationStat.KUsage = oscillationStat.SumDepthInterval / oscillationStat.SumOperationDepthInterval;
 
         return oscillationStat;
     }