diff --git a/js/js.translator/testData/box/expression/try/overrideThrowableProperties.kt b/js/js.translator/testData/box/expression/try/overrideThrowableProperties.kt
index 6f985a30695..6ea28a32da1 100644
--- a/js/js.translator/testData/box/expression/try/overrideThrowableProperties.kt
+++ b/js/js.translator/testData/box/expression/try/overrideThrowableProperties.kt
@@ -1,3 +1,4 @@
+// IGNORE_BACKEND_K2: JS_IR
 // EXPECTED_REACHABLE_NODES: 1315
 
 open class Ex0(msg: String, cs: Throwable): Throwable(msg, cs)
diff --git a/js/js.translator/testData/box/native/inheritanceFromNativeTrait.kt b/js/js.translator/testData/box/native/inheritanceFromNativeTrait.kt
index 11cbee458a2..2690122c88e 100644
--- a/js/js.translator/testData/box/native/inheritanceFromNativeTrait.kt
+++ b/js/js.translator/testData/box/native/inheritanceFromNativeTrait.kt
@@ -1,5 +1,6 @@
 // DONT_TARGET_EXACT_BACKEND: WASM
 // WASM_MUTE_REASON: IMPLEMENTING_EXTERNAL_INTERFACE
+// IGNORE_BACKEND_K2: JS_IR
 // EXPECTED_REACHABLE_NODES: 1297
 package foo
 
diff --git a/js/js.translator/testData/box/propertyAccess/configurable.kt b/js/js.translator/testData/box/propertyAccess/configurable.kt
index 2d892420efc..8e2c4de41e6 100644
--- a/js/js.translator/testData/box/propertyAccess/configurable.kt
+++ b/js/js.translator/testData/box/propertyAccess/configurable.kt
@@ -1,5 +1,6 @@
 // EXPECTED_REACHABLE_NODES: 1345
 // KJS_WITH_FULL_RUNTIME
+// IGNORE_BACKEND_K2: JS_IR
 package foo
 
 external interface EP {
diff --git a/js/js.translator/testData/box/reflection/kClassReifiedWithJsCall.kt b/js/js.translator/testData/box/reflection/kClassReifiedWithJsCall.kt
index 20db130ba88..2f7f9be9d78 100644
--- a/js/js.translator/testData/box/reflection/kClassReifiedWithJsCall.kt
+++ b/js/js.translator/testData/box/reflection/kClassReifiedWithJsCall.kt
@@ -1,3 +1,4 @@
+// IGNORE_BACKEND_K2: JS_IR
 import kotlin.reflect.KClass
 
 // FILE: main.kt
diff --git a/js/js.translator/testData/box/reflection/kClassWithJsCall.kt b/js/js.translator/testData/box/reflection/kClassWithJsCall.kt
index f4a62b31dcf..860baa3e684 100644
--- a/js/js.translator/testData/box/reflection/kClassWithJsCall.kt
+++ b/js/js.translator/testData/box/reflection/kClassWithJsCall.kt
@@ -1,3 +1,4 @@
+// IGNORE_BACKEND_K2: JS_IR
 // FILE: main.kt
 import kotlin.reflect.KClass
 
diff --git a/js/js.translator/testData/box/reflection/kJsClassWithJsCall.kt b/js/js.translator/testData/box/reflection/kJsClassWithJsCall.kt
index d51da2e25ca..8d4c21d0a88 100644
--- a/js/js.translator/testData/box/reflection/kJsClassWithJsCall.kt
+++ b/js/js.translator/testData/box/reflection/kJsClassWithJsCall.kt
@@ -1,3 +1,4 @@
+// IGNORE_BACKEND_K2: JS_IR
 import kotlin.reflect.KClass
 
 // FILE: main.kt
diff --git a/js/js.translator/testData/box/reflection/kTypeWithJsCall.kt b/js/js.translator/testData/box/reflection/kTypeWithJsCall.kt
index 81d58540825..533b7538541 100644
--- a/js/js.translator/testData/box/reflection/kTypeWithJsCall.kt
+++ b/js/js.translator/testData/box/reflection/kTypeWithJsCall.kt
@@ -1,4 +1,5 @@
 // KJS_WITH_FULL_RUNTIME
+// IGNORE_BACKEND_K2: JS_IR
 
 import kotlin.reflect.KClass
 import kotlin.reflect.KType