diff --git a/compiler/testData/codegen/box/ir/serializationRegressions/transitiveClash.kt b/compiler/testData/codegen/box/ir/serializationRegressions/transitiveClash.kt
index 76ec2f463da..8cad9ad19e8 100644
--- a/compiler/testData/codegen/box/ir/serializationRegressions/transitiveClash.kt
+++ b/compiler/testData/codegen/box/ir/serializationRegressions/transitiveClash.kt
@@ -1,3 +1,4 @@
+// IGNORE_BACKEND_FIR: JVM_IR
 // EXPECTED_REACHABLE_NODES: 1304
 // IGNORE_BACKEND: JS_IR
 // IGNORE_BACKEND: JVM