diff --git a/compiler/testData/codegen/box/smartCasts/implicitReceiver.kt b/compiler/testData/codegen/box/smartCasts/implicitReceiver.kt
index 911f53248c5..adae422f59d 100644
--- a/compiler/testData/codegen/box/smartCasts/implicitReceiver.kt
+++ b/compiler/testData/codegen/box/smartCasts/implicitReceiver.kt
@@ -1,3 +1,5 @@
+// IGNORE_BACKEND_FIR: JVM_IR
+
 open class A {
     class B : A() {
         val a = "FAIL"
diff --git a/compiler/testData/codegen/box/smartCasts/implicitToGrandSon.kt b/compiler/testData/codegen/box/smartCasts/implicitToGrandSon.kt
index 588cc9ff24d..45cd09089a8 100644
--- a/compiler/testData/codegen/box/smartCasts/implicitToGrandSon.kt
+++ b/compiler/testData/codegen/box/smartCasts/implicitToGrandSon.kt
@@ -1,3 +1,5 @@
+// IGNORE_BACKEND_FIR: JVM_IR
+
 open class A {
     open fun foo() = "FAIL"