diff --git a/libraries/examples/scripting/jvm-maven-deps/host/test/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/test/resolveTest.kt b/libraries/examples/scripting/jvm-maven-deps/host/test/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/test/resolveTest.kt
index 2350c5fb511..45015d00b03 100644
--- a/libraries/examples/scripting/jvm-maven-deps/host/test/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/test/resolveTest.kt
+++ b/libraries/examples/scripting/jvm-maven-deps/host/test/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/test/resolveTest.kt
@@ -15,7 +15,7 @@ class ResolveTest {
 
     @Test
     fun testResolveJunit() {
-        val res = evalFile(File("testData/hello-maven-resolve-junit.kts"))
+        val res = evalFile(File("testData/hello-maven-resolve-junit.scriptwithdeps.kts"))
 
         Assert.assertTrue(
             "test failed:\n  ${res.reports.joinToString("\n  ") { it.message + if (it.exception == null) "" else ": ${it.exception}" }}",
@@ -25,7 +25,7 @@ class ResolveTest {
 
     @Test
     fun testUnresolvedJunit() {
-        val res = evalFile(File("testData/hello-unresolved-junit.kts"))
+        val res = evalFile(File("testData/hello-unresolved-junit.scriptwithdeps.kts"))
 
         Assert.assertTrue(
             "test failed - expecting a failure with the message \"Unresolved reference: junit\" but received " +
@@ -36,7 +36,7 @@ class ResolveTest {
 
     @Test
     fun testResolveError() {
-        val res = evalFile(File("testData/hello-maven-resolve-error.kts"))
+        val res = evalFile(File("testData/hello-maven-resolve-error.scriptwithdeps.kts"))
 
         Assert.assertTrue(
             "test failed - expecting a failure with the message \"Unknown set of arguments to maven resolver: abracadabra\" but received " +
diff --git a/libraries/examples/scripting/jvm-maven-deps/host/testData/hello-maven-resolve-error.kts b/libraries/examples/scripting/jvm-maven-deps/host/testData/hello-maven-resolve-error.scriptwithdeps.kts
similarity index 100%
rename from libraries/examples/scripting/jvm-maven-deps/host/testData/hello-maven-resolve-error.kts
rename to libraries/examples/scripting/jvm-maven-deps/host/testData/hello-maven-resolve-error.scriptwithdeps.kts
diff --git a/libraries/examples/scripting/jvm-maven-deps/host/testData/hello-maven-resolve-junit.kts b/libraries/examples/scripting/jvm-maven-deps/host/testData/hello-maven-resolve-junit.scriptwithdeps.kts
similarity index 100%
rename from libraries/examples/scripting/jvm-maven-deps/host/testData/hello-maven-resolve-junit.kts
rename to libraries/examples/scripting/jvm-maven-deps/host/testData/hello-maven-resolve-junit.scriptwithdeps.kts
diff --git a/libraries/examples/scripting/jvm-maven-deps/host/testData/hello-unresolved-junit.kts b/libraries/examples/scripting/jvm-maven-deps/host/testData/hello-unresolved-junit.scriptwithdeps.kts
similarity index 100%
rename from libraries/examples/scripting/jvm-maven-deps/host/testData/hello-unresolved-junit.kts
rename to libraries/examples/scripting/jvm-maven-deps/host/testData/hello-unresolved-junit.scriptwithdeps.kts
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 355e3cf6196..ed74f60f2dd 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
@@ -15,12 +15,14 @@ import kotlin.script.dependencies.ScriptDependenciesResolver
 import kotlin.script.experimental.annotations.KotlinScript
 import kotlin.script.experimental.annotations.KotlinScriptCompilationConfigurator
 import kotlin.script.experimental.annotations.KotlinScriptEvaluator
+import kotlin.script.experimental.annotations.KotlinScriptFileExtension
 import kotlin.script.experimental.api.*
 import kotlin.script.experimental.jvm.*
 import kotlin.script.experimental.jvm.runners.BasicJvmScriptEvaluator
 import kotlin.script.experimental.misc.*
 
 @KotlinScript
+@KotlinScriptFileExtension("scriptwithdeps.kts")
 @KotlinScriptCompilationConfigurator(MyConfigurator::class)
 @KotlinScriptEvaluator(BasicJvmScriptEvaluator::class)
 abstract class MyScriptWithMavenDeps {
diff --git a/libraries/examples/scripting/jvm-simple-script/host/test/org/jetbrains/kotlin/script/examples/jvm/simple/test/simpleTest.kt b/libraries/examples/scripting/jvm-simple-script/host/test/org/jetbrains/kotlin/script/examples/jvm/simple/test/simpleTest.kt
index d4e1ac8bb76..c97d1b69b35 100644
--- a/libraries/examples/scripting/jvm-simple-script/host/test/org/jetbrains/kotlin/script/examples/jvm/simple/test/simpleTest.kt
+++ b/libraries/examples/scripting/jvm-simple-script/host/test/org/jetbrains/kotlin/script/examples/jvm/simple/test/simpleTest.kt
@@ -15,7 +15,7 @@ class SimpleTest {
 
     @Test
     fun testSimple() {
-        val res = evalFile(File("testData/hello.kts"))
+        val res = evalFile(File("testData/hello.simplescript.kts"))
 
         Assert.assertTrue(
             "test failed:\n  ${res.reports.joinToString("\n  ") { it.message + if (it.exception == null) "" else ": ${it.exception}" }}",
@@ -25,7 +25,7 @@ class SimpleTest {
 
     @Test
     fun testError() {
-        val res = evalFile(File("testData/error.kts"))
+        val res = evalFile(File("testData/error.simplescript.kts"))
 
         Assert.assertTrue(
             "test failed - expecting a failure with the message \"Unresolved reference: abracadabra\" but received " +
diff --git a/libraries/examples/scripting/jvm-simple-script/host/testData/error.kts b/libraries/examples/scripting/jvm-simple-script/host/testData/error.simplescript.kts
similarity index 100%
rename from libraries/examples/scripting/jvm-simple-script/host/testData/error.kts
rename to libraries/examples/scripting/jvm-simple-script/host/testData/error.simplescript.kts
diff --git a/libraries/examples/scripting/jvm-simple-script/host/testData/hello.kts b/libraries/examples/scripting/jvm-simple-script/host/testData/hello.simplescript.kts
similarity index 100%
rename from libraries/examples/scripting/jvm-simple-script/host/testData/hello.kts
rename to libraries/examples/scripting/jvm-simple-script/host/testData/hello.simplescript.kts
diff --git a/libraries/examples/scripting/jvm-simple-script/script/src/org/jetbrains/kotlin/script/examples/jvm/simple/scriptDef.kt b/libraries/examples/scripting/jvm-simple-script/script/src/org/jetbrains/kotlin/script/examples/jvm/simple/scriptDef.kt
index 9792bf84b40..5b62314265b 100644
--- a/libraries/examples/scripting/jvm-simple-script/script/src/org/jetbrains/kotlin/script/examples/jvm/simple/scriptDef.kt
+++ b/libraries/examples/scripting/jvm-simple-script/script/src/org/jetbrains/kotlin/script/examples/jvm/simple/scriptDef.kt
@@ -7,10 +7,12 @@ package org.jetbrains.kotlin.script.examples.jvm.simple
 
 import kotlin.script.experimental.annotations.KotlinScript
 import kotlin.script.experimental.annotations.KotlinScriptEvaluator
+import kotlin.script.experimental.annotations.KotlinScriptFileExtension
 import kotlin.script.experimental.jvm.runners.BasicJvmScriptEvaluator
 
 @KotlinScript
 @KotlinScriptEvaluator(BasicJvmScriptEvaluator::class)
+@KotlinScriptFileExtension("simplescript.kts")
 abstract class MyScript {
 //    abstract fun body(vararg args: String): Int
 }