diff --git a/presto-native-execution/presto_cpp/main/common/Configs.cpp b/presto-native-execution/presto_cpp/main/common/Configs.cpp
index 76613ee440df4..638b03f67891e 100644
--- a/presto-native-execution/presto_cpp/main/common/Configs.cpp
+++ b/presto-native-execution/presto_cpp/main/common/Configs.cpp
@@ -166,7 +166,7 @@ SystemConfig::SystemConfig() {
           NUM_PROP(kDriverStuckOperatorThresholdMs, 30 * 60 * 1000),
           NUM_PROP(
               kDriverCancelTasksWithStuckOperatorsThresholdMs, 40 * 60 * 1000),
-          NUM_PROP(kDriverNumStuckOperatorsToDetachWorker, 0.5 * hardwareConcurrency()),
+          NUM_PROP(kDriverNumStuckOperatorsToDetachWorker, std::round(0.5 * hardwareConcurrency())),
           NUM_PROP(kSpillerNumCpuThreadsHwMultiplier, 1.0),
           STR_PROP(kSpillerFileCreateConfig, ""),
           STR_PROP(kSpillerDirectoryCreateConfig, ""),