diff --git a/ATxService/AutoTx.cs b/ATxService/AutoTx.cs
index 0b71c5b678651380eec4a25d2f5497954a7588b6..4af8b97945b6e659e70fb2abefc5a30907bf9c7a 100644
--- a/ATxService/AutoTx.cs
+++ b/ATxService/AutoTx.cs
@@ -532,7 +532,7 @@ namespace ATxService
 
             // check all system parameters for valid ranges and remember the reason in a string
             // if one of them is failing (to report in the log why we're suspended)
-            if (SystemChecks.GetCpuUsage() >= _config.MaxCpuUsage)
+            if (_cpu.Load() >= _config.MaxCpuUsage)
                 limitReason = "CPU usage";
             else if (SystemChecks.GetFreeMemory() < _config.MinAvailableMemory)
                 limitReason = "RAM usage";