diff --git a/core/src/main/kotlin/com/volmit/iris/core/scripting/kotlin/base/SimpleScript.kt b/core/src/main/kotlin/com/volmit/iris/core/scripting/kotlin/base/SimpleScript.kt
index a2ddcb728..d97732c31 100644
--- a/core/src/main/kotlin/com/volmit/iris/core/scripting/kotlin/base/SimpleScript.kt
+++ b/core/src/main/kotlin/com/volmit/iris/core/scripting/kotlin/base/SimpleScript.kt
@@ -4,7 +4,6 @@ import com.volmit.iris.core.scripting.kotlin.runner.configureMavenDepsOnAnnotati
 import kotlin.script.experimental.annotations.KotlinScript
 import kotlin.script.experimental.api.ScriptCompilationConfiguration
 import kotlin.script.experimental.api.defaultImports
-import kotlin.script.experimental.api.isStandalone
 import kotlin.script.experimental.api.refineConfiguration
 import kotlin.script.experimental.dependencies.DependsOn
 import kotlin.script.experimental.dependencies.Repository
@@ -15,7 +14,6 @@ import kotlin.script.experimental.jvm.jvm
 abstract class SimpleScript
 
 object SimpleScriptDefinition : ScriptCompilationConfiguration({
-    isStandalone(false)
     defaultImports(
         DependsOn::class.qualifiedName!!,
         Repository::class.qualifiedName!!,
diff --git a/core/src/main/kotlin/com/volmit/iris/core/scripting/kotlin/runner/CachedScript.kt b/core/src/main/kotlin/com/volmit/iris/core/scripting/kotlin/runner/CachedScript.kt
index 290ea6c33..c30df1f35 100644
--- a/core/src/main/kotlin/com/volmit/iris/core/scripting/kotlin/runner/CachedScript.kt
+++ b/core/src/main/kotlin/com/volmit/iris/core/scripting/kotlin/runner/CachedScript.kt
@@ -1,6 +1,6 @@
 package com.volmit.iris.core.scripting.kotlin.runner
 
-import java.util.concurrent.atomic.AtomicReferenceFieldUpdater
+import java.util.concurrent.locks.ReentrantLock
 import kotlin.reflect.KClass
 import kotlin.script.experimental.api.*
 import kotlin.script.experimental.host.ScriptingHostConfiguration
@@ -14,6 +14,7 @@ data class CachedScript(
 ) : Script, CompiledScript {
     private val scripts = base.otherScripts.map { CachedScript(it, host, hostConfig) }
     private val evalConfig = createEvaluationConfiguration()
+    private val lock = ReentrantLock()
 
     @Volatile
     private var value: ResultWithDiagnostics<KClass<*>>? = null
@@ -32,13 +33,16 @@ data class CachedScript(
 
 
     override suspend fun getClass(scriptEvaluationConfiguration: ScriptEvaluationConfiguration?) = value ?: run {
-        val cached = base.getClass(scriptEvaluationConfiguration)
-        updater.set(this, cached)
-        return cached
+        lock.lock()
+        try {
+            value ?: base.getClass(scriptEvaluationConfiguration).also { value = it }
+        } finally {
+            lock.unlock()
+        }
     }
 
     override fun evaluate(properties: Map<String, Any?>?) = host.runInCoroutineContext {
-        host.evaluator.invoke(this, createEvaluationConfiguration(properties))
+        host.evaluator(this, createEvaluationConfiguration(properties))
     }
 
     private fun createEvaluationConfiguration(properties: Map<String, Any?>?): ScriptEvaluationConfiguration {
@@ -57,8 +61,4 @@ data class CachedScript(
             hostConfig,
             type)
     }
-
-    companion object {
-        private val updater = AtomicReferenceFieldUpdater.newUpdater(CachedScript::class.java, ResultWithDiagnostics::class.java, "value")
-    }
 }