diff --git a/src/main/kotlin/net/shadowfacts/ekt/EKT.kt b/src/main/kotlin/net/shadowfacts/ekt/EKT.kt
index 80c1a07..93b1c1e 100644
--- a/src/main/kotlin/net/shadowfacts/ekt/EKT.kt
+++ b/src/main/kotlin/net/shadowfacts/ekt/EKT.kt
@@ -3,6 +3,7 @@ package net.shadowfacts.ekt
 import java.io.File
 import javax.script.ScriptContext
 import javax.script.ScriptEngineManager
+import javax.script.SimpleScriptContext
 
 /**
  * @author shadowfacts
@@ -35,6 +36,10 @@ _result.toString()
 		ScriptEngineManager()
 	}
 
+	private val engine by lazy {
+		manager.getEngineByExtension("kts")
+	}
+
 	fun render(template: String, dumpGeneratedScript: File? = null, dataProvider: DataProviderContext.() -> Unit): String {
 		@Suppress("NAME_SHADOWING")
 		var template = template
@@ -75,7 +80,7 @@ _result.toString()
 	}
 
 	internal fun eval(script: String, data: Map<String, TypedValue> = mapOf()): Any? {
-		val engine = manager.getEngineByExtension("kts")
+		engine.context = SimpleScriptContext()
 		val bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE)
 		bindings.putAll(data)