diff --git a/build-plugins/kmp-conventions/src/main/kotlin/aws/sdk/kotlin/gradle/kmp/ConfigureIosSimulator.kt b/build-plugins/kmp-conventions/src/main/kotlin/aws/sdk/kotlin/gradle/kmp/ConfigureIosSimulator.kt
index e72fa1b..d8f444a 100644
--- a/build-plugins/kmp-conventions/src/main/kotlin/aws/sdk/kotlin/gradle/kmp/ConfigureIosSimulator.kt
+++ b/build-plugins/kmp-conventions/src/main/kotlin/aws/sdk/kotlin/gradle/kmp/ConfigureIosSimulator.kt
@@ -16,45 +16,44 @@ import org.jetbrains.kotlin.konan.target.HostManager
  * https://youtrack.jetbrains.com/issue/KT-38317
  */
 public fun Project.configureIosSimulatorTasks() {
-    val simulatorDeviceName = project.findProperty("iosSimulatorDevice") as? String ?: "iPhone 15"
+    if (!HostManager.hostIsMac) return
 
+    val simulatorDeviceName = project.findProperty("iosSimulatorDevice") as? String ?: "iPhone 15"
     val xcrun = "/usr/bin/xcrun"
 
-    tasks.register("bootIosSimulatorDevice", Exec::class.java) {
+    val bootTask = rootProject.tasks.maybeCreate("bootIosSimulatorDevice", Exec::class.java).apply {
         isIgnoreExitValue = true
         commandLine(xcrun, "simctl", "boot", simulatorDeviceName)
 
         doLast {
             val result = executionResult.get()
             val code = result.exitValue
-            if (code != 148 && code != 149 && code != 405) { // ignore "simulator already running" errors
+            if (code != 148 && code != 149) { // ignore "simulator already running" errors
                 result.assertNormalExitValue()
             }
         }
     }
 
-    tasks.register("shutdownIosSimulatorDevice", Exec::class.java) {
+    val shutdownTask = rootProject.tasks.maybeCreate("shutdownIosSimulatorDevice", Exec::class.java).apply {
         isIgnoreExitValue = true
-        mustRunAfter(tasks.withType<KotlinNativeSimulatorTest>())
         commandLine(xcrun, "simctl", "shutdown", simulatorDeviceName)
 
         doLast {
             val result = executionResult.get()
-            if (result.exitValue != 405) { // ignore "simulator already shutdown" errors
+            val code = result.exitValue
+            if (code != 148 && code != 149) { // ignore "simulator already shutdown" errors
                 result.assertNormalExitValue()
             }
         }
     }
 
-    tasks.withType<KotlinNativeSimulatorTest>().configureEach {
-        if (!HostManager.hostIsMac) {
-            return@configureEach
+    allprojects {
+        val simulatorTasks = tasks.withType<KotlinNativeSimulatorTest>()
+        simulatorTasks.configureEach {
+            dependsOn(bootTask)
+            standalone.set(false)
+            device.set(simulatorDeviceName)
         }
-
-        dependsOn("bootIosSimulatorDevice")
-        finalizedBy("shutdownIosSimulatorDevice")
-
-        standalone.set(false)
-        device.set(simulatorDeviceName)
+        shutdownTask.mustRunAfter(simulatorTasks)
     }
 }