diff --git a/libraries/examples/scripting/jvm-maven-deps/script/src/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/scriptDef.kt b/libraries/examples/scripting/jvm-maven-deps/script/src/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/scriptDef.kt
index 55ceba5a0ff..b08b49750a6 100644
--- a/libraries/examples/scripting/jvm-maven-deps/script/src/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/scriptDef.kt
+++ b/libraries/examples/scripting/jvm-maven-deps/script/src/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/scriptDef.kt
@@ -12,20 +12,19 @@ import java.io.File
 import kotlin.script.dependencies.ScriptContents
 import kotlin.script.dependencies.ScriptDependenciesResolver
 import kotlin.script.experimental.annotations.KotlinScript
-import kotlin.script.experimental.annotations.KotlinScriptFileExtension
-import kotlin.script.experimental.annotations.KotlinScriptProperties
 import kotlin.script.experimental.api.*
 import kotlin.script.experimental.jvm.*
 import kotlin.script.experimental.misc.invoke
 
-@KotlinScript
-@KotlinScriptFileExtension("scriptwithdeps.kts")
-@KotlinScriptProperties(MyConfiguration::class)
+@KotlinScript(
+    extension = "scriptwithdeps.kts",
+    properties = MyScriptProperties::class
+)
 abstract class MyScriptWithMavenDeps {
 //    abstract fun body(vararg args: String): Int
 }
 
-object MyConfiguration : ScriptingProperties() {
+object MyScriptProperties : ScriptingProperties() {
     init {
         include(jvmJavaHomeScriptingProperties)
         scriptDefinition {
diff --git a/libraries/scripting/common/src/kotlin/script/experimental/annotations/scriptAnnotations.kt b/libraries/scripting/common/src/kotlin/script/experimental/annotations/scriptAnnotations.kt
index f82dbda8885..44499d16d2b 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/annotations/scriptAnnotations.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/annotations/scriptAnnotations.kt
@@ -18,7 +18,9 @@ import kotlin.script.experimental.api.ScriptingProperties
 @Target(AnnotationTarget.CLASS)
 @Retention(AnnotationRetention.RUNTIME)
 annotation class KotlinScript(
-    val name: String = "Kotlin script"
+    val name: String = "Kotlin script",
+    val extension: String = "kts",
+    val properties: KClass<out ScriptingProperties> = ScriptingProperties::class // object or class filled in 0-ary constructor
 )
 
 @Target(AnnotationTarget.CLASS)
diff --git a/libraries/scripting/common/src/kotlin/script/experimental/definitions/definitionFromAnnotation.kt b/libraries/scripting/common/src/kotlin/script/experimental/definitions/definitionFromAnnotation.kt
index 4a2ef14449b..98a52adb037 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/definitions/definitionFromAnnotation.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/definitions/definitionFromAnnotation.kt
@@ -40,9 +40,10 @@ fun createScriptDefinitionFromAnnotatedBaseClass(
         ?: throw IllegalArgumentException("${ERROR_MSG_PREFIX}Expecting KotlinScript annotation on the $baseClass")
 
     val propertiesData = hashMapOf<TypedKey<*>, Any?>(ScriptDefinitionProperties.baseClass to baseClassType)
-    baseClass.findAnnotation<KotlinScriptFileExtension>()?.let {
-        propertiesData[ScriptDefinitionProperties.fileExtension] = it.extension
-    }
+
+    propertiesData[ScriptDefinitionProperties.fileExtension] =
+            baseClass.findAnnotation<KotlinScriptFileExtension>()?.let { it.extension }
+            ?: mainAnnotation.extension
     propertiesData += ScriptDefinitionProperties.name to mainAnnotation.name
     baseClass.annotations.filterIsInstance(KotlinScriptPropertiesFromList::class.java).forEach { ann ->
         val params = try {
@@ -58,15 +59,18 @@ fun createScriptDefinitionFromAnnotatedBaseClass(
             }
         }
     }
-    baseClass.annotations.filterIsInstance(KotlinScriptProperties::class.java).forEach { ann ->
-        val params = try {
-            ann.definitionProperties.objectInstance ?: ann.definitionProperties.createInstance()
-        } catch (e: Throwable) {
-            throw IllegalArgumentException(ILLEGAL_CONFIG_ANN_ARG, e)
-        }
-        propertiesData.putAll(params.data)
-        // TODO: chaining is lost here, fix it
+
+    fun scriptingPropsInstance(kclass: KClass<out ScriptingProperties>): ScriptingProperties = try {
+        kclass.objectInstance ?: kclass.createInstance()
+    } catch (e: Throwable) {
+        throw IllegalArgumentException(ILLEGAL_CONFIG_ANN_ARG, e)
     }
+
+    baseClass.annotations.filterIsInstance(KotlinScriptProperties::class.java).forEach { ann ->
+        propertiesData.putAll(scriptingPropsInstance(ann.definitionProperties).data)
+    }
+    // TODO: chaining is lost here and above, fix it
+    propertiesData.putAll(scriptingPropsInstance(mainAnnotation.properties).data)
     return ScriptingEnvironment.createOptimized(null, propertiesData)
 }
 
diff --git a/plugins/scripting/scripting-cli/src/org/jetbrains/kotlin/scripting/compiler/plugin/LazyScriptDefinitionFromDiscoveredClass.kt b/plugins/scripting/scripting-cli/src/org/jetbrains/kotlin/scripting/compiler/plugin/LazyScriptDefinitionFromDiscoveredClass.kt
index c1dd6bf4c8c..7e97edd7907 100644
--- a/plugins/scripting/scripting-cli/src/org/jetbrains/kotlin/scripting/compiler/plugin/LazyScriptDefinitionFromDiscoveredClass.kt
+++ b/plugins/scripting/scripting-cli/src/org/jetbrains/kotlin/scripting/compiler/plugin/LazyScriptDefinitionFromDiscoveredClass.kt
@@ -66,6 +66,8 @@ class LazyScriptDefinitionFromDiscoveredClass internal constructor(
 
     override val scriptFileExtensionWithDot: String by lazy(LazyThreadSafetyMode.PUBLICATION) {
         val ext = annotationsFromAsm.find { it.name == KotlinScriptFileExtension::class.simpleName!! }?.args?.first()
+            // TODO: check whether it actually works
+            ?: annotationsFromAsm.find { it.name == KotlinScript::class.simpleName }?.args?.get(1)
             ?: scriptDefinition.let {
                 it.getOrNull(ScriptDefinitionProperties.fileExtension) ?: "kts"
             }