diff --git a/plugins/kapt3/kapt3-compiler/testData/converter/invalidFieldName.fir.txt b/plugins/kapt3/kapt3-compiler/testData/converter/invalidFieldName.fir.txt
new file mode 100644
index 00000000000..5b56f018d5f
--- /dev/null
+++ b/plugins/kapt3/kapt3-compiler/testData/converter/invalidFieldName.fir.txt
@@ -0,0 +1,51 @@
+/**
+ * public final annotation class Anno : kotlin/Annotation {
+ *
+ *   // signature: <init>(LColor;)V
+ *   public constructor(color: Color)
+ *
+ *   // getter: color()LColor;
+ *   public final val color: Color
+ *     public final get
+ *
+ *   // module name: main
+ * }
+ */
+@kotlin.Metadata()
+@Anno(color = Color.InvalidFieldName)
+@java.lang.annotation.Retention(value = java.lang.annotation.RetentionPolicy.RUNTIME)
+public abstract @interface Anno {
+
+    public abstract Color color();
+}
+
+////////////////////
+
+
+/**
+ * public final enum class Color : kotlin/Enum<Color> {
+ *
+ *   // signature: <init>(Ljava/lang/String;I)V
+ *   private constructor()
+ *
+ *   BLACK,
+ *
+ *   WHI-TE,
+ *
+ *   // module name: main
+ *
+ *   // has Enum.entries
+ * }
+ */
+@kotlin.Metadata()
+public enum Color {
+    /*public static final*/ BLACK /* = new Color() */;
+
+    Color() {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public static kotlin.enums.EnumEntries<Color> getEntries() {
+        return null;
+    }
+}
diff --git a/plugins/kapt3/kapt3-compiler/testData/converter/invalidFieldName.kt b/plugins/kapt3/kapt3-compiler/testData/converter/invalidFieldName.kt
index d878b9db945..cf66b735754 100644
--- a/plugins/kapt3/kapt3-compiler/testData/converter/invalidFieldName.kt
+++ b/plugins/kapt3/kapt3-compiler/testData/converter/invalidFieldName.kt
@@ -1,4 +1,3 @@
-// FIR_BLOCKED: LC don't support illegal java identifiers
 enum class Color {
     BLACK, `WHI-TE`
 }
@@ -6,5 +5,5 @@ enum class Color {
 @Anno(Color.`WHI-TE`)
 annotation class Anno(val color: Color)
 
-// EXPECTED_ERROR: (kotlin:6:1) an enum annotation value must be an enum constant
+// EXPECTED_ERROR: (kotlin:5:1) an enum annotation value must be an enum constant
 // EXPECTED_ERROR: (other:-1:-1) 'WHI-TE' is an invalid Java enum value name
diff --git a/plugins/kapt4/src/org/jetbrains/kotlin/kapt4/StubGenerator.kt b/plugins/kapt4/src/org/jetbrains/kotlin/kapt4/StubGenerator.kt
index ec5f37c8fe8..6ae9b03c992 100644
--- a/plugins/kapt4/src/org/jetbrains/kotlin/kapt4/StubGenerator.kt
+++ b/plugins/kapt4/src/org/jetbrains/kotlin/kapt4/StubGenerator.kt
@@ -43,6 +43,7 @@ import org.jetbrains.kotlin.psi.psiUtil.parameterIndex
 import org.jetbrains.kotlin.resolve.calls.util.getCalleeExpressionIfAny
 import org.jetbrains.kotlin.utils.toMetadataVersion
 import org.jetbrains.kotlin.kapt3.base.KaptOptions
+import org.jetbrains.kotlin.kapt3.base.javac.kaptError
 import org.jetbrains.kotlin.kapt3.stubs.MembersPositionComparator
 import org.jetbrains.kotlin.psi.psiUtil.children
 import org.jetbrains.kotlin.utils.Printer
@@ -466,7 +467,9 @@ private class StubGenerator(
 
             private fun convertDotQualifiedExpression(dotQualifiedExpression: KtDotQualifiedExpression): String? {
                 val qualifier = dotQualifiedExpression.lastChild as? KtNameReferenceExpression ?: return null
-                val name = qualifier.text.takeIf { isValidIdentifier(it) } ?: "InvalidFieldName"
+                val name = qualifier.text.takeIf { isValidIdentifier(it) } ?: "InvalidFieldName".also {
+                    onError("'${qualifier.text.removeSurrounding("`")}' is an invalid Java enum value name")
+                }
                 val lhs = when (val left = dotQualifiedExpression.firstChild) {
                     is KtNameReferenceExpression -> left.getReferencedName()
                     is KtDotQualifiedExpression -> convertDotQualifiedExpression(left) ?: return null
diff --git a/plugins/kapt4/test/org/jetbrains/kotlin/kapt4/Kapt4Facade.kt b/plugins/kapt4/test/org/jetbrains/kotlin/kapt4/Kapt4Facade.kt
index 430e96781bd..1cd5c039ecb 100644
--- a/plugins/kapt4/test/org/jetbrains/kotlin/kapt4/Kapt4Facade.kt
+++ b/plugins/kapt4/test/org/jetbrains/kotlin/kapt4/Kapt4Facade.kt
@@ -85,11 +85,7 @@ private fun run(
         WriterBackedKaptLogger(isVerbose = false),
     )
     val onError = { message: String ->
-        if (context.options[KaptFlag.STRICT]) {
-            context.reportKaptError(*message.split("\n").toTypedArray())
-        } else {
-            context.logger.warn(message)
-        }
+        context.reportKaptError(*message.split("\n").toTypedArray())
     }
     return context to generateStubs(module, files, options, onError, metadataRenderer = { renderMetadata(it) })
 }