diff --git a/compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirJvmDiagnosticsList.kt b/compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirJvmDiagnosticsList.kt
index 34e2dd296f1..bc4ac129a8e 100644
--- a/compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirJvmDiagnosticsList.kt
+++ b/compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirJvmDiagnosticsList.kt
@@ -71,6 +71,7 @@ object JVM_DIAGNOSTICS_LIST : DiagnosticList("FirJvmErrors") {
         val JVM_RECORD_NOT_LAST_VARARG_PARAMETER by error<PsiElement>()
         val INNER_JVM_RECORD by error<PsiElement>(PositioningStrategy.INNER_MODIFIER)
         val FIELD_IN_JVM_RECORD by error<PsiElement>()
+        val DELEGATION_BY_IN_JVM_RECORD by error<PsiElement>()
     }
 
 }
diff --git a/compiler/fir/checkers/checkers.jvm/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/jvm/FirJvmErrors.kt b/compiler/fir/checkers/checkers.jvm/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/jvm/FirJvmErrors.kt
index 1aab921b8e3..e4cb0c2259c 100644
--- a/compiler/fir/checkers/checkers.jvm/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/jvm/FirJvmErrors.kt
+++ b/compiler/fir/checkers/checkers.jvm/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/jvm/FirJvmErrors.kt
@@ -60,5 +60,6 @@ object FirJvmErrors {
     val JVM_RECORD_NOT_LAST_VARARG_PARAMETER by error0<PsiElement>()
     val INNER_JVM_RECORD by error0<PsiElement>(SourceElementPositioningStrategies.INNER_MODIFIER)
     val FIELD_IN_JVM_RECORD by error0<PsiElement>()
+    val DELEGATION_BY_IN_JVM_RECORD by error0<PsiElement>()
 
 }
diff --git a/compiler/fir/checkers/checkers.jvm/src/org/jetbrains/kotlin/fir/analysis/jvm/checkers/declaration/FirJvmRecordChecker.kt b/compiler/fir/checkers/checkers.jvm/src/org/jetbrains/kotlin/fir/analysis/jvm/checkers/declaration/FirJvmRecordChecker.kt
index 3720efb201e..f0f80951af0 100644
--- a/compiler/fir/checkers/checkers.jvm/src/org/jetbrains/kotlin/fir/analysis/jvm/checkers/declaration/FirJvmRecordChecker.kt
+++ b/compiler/fir/checkers/checkers.jvm/src/org/jetbrains/kotlin/fir/analysis/jvm/checkers/declaration/FirJvmRecordChecker.kt
@@ -13,6 +13,7 @@ import org.jetbrains.kotlin.fir.analysis.diagnostics.DiagnosticReporter
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors
 import org.jetbrains.kotlin.fir.analysis.diagnostics.jvm.FirJvmErrors
 import org.jetbrains.kotlin.fir.analysis.diagnostics.reportOn
+import org.jetbrains.kotlin.fir.declarations.FirField
 import org.jetbrains.kotlin.fir.declarations.FirProperty
 import org.jetbrains.kotlin.fir.declarations.FirRegularClass
 import org.jetbrains.kotlin.fir.declarations.getAnnotationByFqName
@@ -83,6 +84,8 @@ object FirJvmRecordChecker : FirRegularClassChecker() {
                 } else if (!fromConstructor && (decl.hasBackingField || decl.delegateFieldSymbol != null)) {
                     reporter.reportOn(decl.source, FirJvmErrors.FIELD_IN_JVM_RECORD, context)
                 }
+            } else if (decl is FirField && decl.isSynthetic) {
+                reporter.reportOn(decl.source, FirJvmErrors.DELEGATION_BY_IN_JVM_RECORD, context)
             }
         }
     }
diff --git a/compiler/testData/diagnostics/tests/testsWithJava15/jvmRecord/irrelevantFields.fir.kt b/compiler/testData/diagnostics/tests/testsWithJava15/jvmRecord/irrelevantFields.fir.kt
index 8ec007be499..3359d6dd8b2 100644
--- a/compiler/testData/diagnostics/tests/testsWithJava15/jvmRecord/irrelevantFields.fir.kt
+++ b/compiler/testData/diagnostics/tests/testsWithJava15/jvmRecord/irrelevantFields.fir.kt
@@ -9,7 +9,7 @@ interface I
 val i: I = object : I {}
 
 @JvmRecord
-data class MyRec1(val name: String) : I by i
+data class MyRec1(val name: String) : I by <!DELEGATION_BY_IN_JVM_RECORD!>i<!>
 
 @JvmRecord
 data class MyRec2(val name: String) {
diff --git a/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDataClassConverters.kt b/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDataClassConverters.kt
index ebf89ad7362..4e6342b0f44 100644
--- a/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDataClassConverters.kt
+++ b/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDataClassConverters.kt
@@ -3592,4 +3592,10 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
             token,
         )
     }
+    add(FirJvmErrors.DELEGATION_BY_IN_JVM_RECORD) { firDiagnostic ->
+        DelegationByInJvmRecordImpl(
+            firDiagnostic as FirPsiDiagnostic,
+            token,
+        )
+    }
 }
diff --git a/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDiagnostics.kt b/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDiagnostics.kt
index b7b525fb084..99ec28f7045 100644
--- a/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDiagnostics.kt
+++ b/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDiagnostics.kt
@@ -2501,4 +2501,8 @@ sealed class KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
         override val diagnosticClass get() = FieldInJvmRecord::class
     }
 
+    abstract class DelegationByInJvmRecord : KtFirDiagnostic<PsiElement>() {
+        override val diagnosticClass get() = DelegationByInJvmRecord::class
+    }
+
 }
diff --git a/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDiagnosticsImpl.kt b/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDiagnosticsImpl.kt
index 2e60649e408..694e42087b6 100644
--- a/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDiagnosticsImpl.kt
+++ b/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDiagnosticsImpl.kt
@@ -4056,3 +4056,10 @@ internal class FieldInJvmRecordImpl(
     override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
 }
 
+internal class DelegationByInJvmRecordImpl(
+    firDiagnostic: FirPsiDiagnostic,
+    override val token: ValidityToken,
+) : KtFirDiagnostic.DelegationByInJvmRecord(), KtAbstractFirDiagnostic<PsiElement> {
+    override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
+}
+