diff --git a/plugins/kotlin-dataframe/src/org/jetbrains/kotlinx/dataframe/plugin/impl/api/toDataFrame.kt b/plugins/kotlin-dataframe/src/org/jetbrains/kotlinx/dataframe/plugin/impl/api/toDataFrame.kt
index 4b632b80f0..db6b881e65 100644
--- a/plugins/kotlin-dataframe/src/org/jetbrains/kotlinx/dataframe/plugin/impl/api/toDataFrame.kt
+++ b/plugins/kotlin-dataframe/src/org/jetbrains/kotlinx/dataframe/plugin/impl/api/toDataFrame.kt
@@ -1,14 +1,14 @@
 package org.jetbrains.kotlinx.dataframe.plugin.impl.api
 
-import org.jetbrains.kotlin.descriptors.EffectiveVisibility
+import org.jetbrains.kotlin.descriptors.Visibilities
 import org.jetbrains.kotlin.fir.FirSession
 import org.jetbrains.kotlinx.dataframe.plugin.classId
 import org.jetbrains.kotlinx.dataframe.plugin.utils.Names
 import org.jetbrains.kotlin.fir.declarations.FirResolvePhase
 import org.jetbrains.kotlin.fir.declarations.hasAnnotation
-import org.jetbrains.kotlin.fir.declarations.utils.effectiveVisibility
 import org.jetbrains.kotlin.fir.declarations.utils.isEnumClass
 import org.jetbrains.kotlin.fir.declarations.utils.isStatic
+import org.jetbrains.kotlin.fir.declarations.utils.visibility
 import org.jetbrains.kotlin.fir.expressions.FirCallableReferenceAccess
 import org.jetbrains.kotlin.fir.expressions.FirExpression
 import org.jetbrains.kotlin.fir.expressions.FirGetClassCall
@@ -256,7 +256,7 @@ internal fun KotlinTypeFacade.toDataFrame(
         return declarations
             .filterNot { excludes.contains(it.first) }
             .filterNot { excludedClasses.contains(it.first.resolvedReturnType) }
-            .filter { it.first.effectiveVisibility == EffectiveVisibility.Public }
+            .filter { it.first.visibility == Visibilities.Public }
             .map { (it, name) ->
                 var returnType = it.fir.returnTypeRef.resolveIfJavaType(session, JavaTypeParameterStack.EMPTY, null)
                     .coneType.upperBoundIfFlexible()
diff --git a/plugins/kotlin-dataframe/testData/box/toDataFrame_local_class.kt b/plugins/kotlin-dataframe/testData/box/toDataFrame_local_class.kt
new file mode 100644
index 0000000000..37230eb03d
--- /dev/null
+++ b/plugins/kotlin-dataframe/testData/box/toDataFrame_local_class.kt
@@ -0,0 +1,20 @@
+import org.jetbrains.kotlinx.dataframe.*
+import org.jetbrains.kotlinx.dataframe.annotations.*
+import org.jetbrains.kotlinx.dataframe.api.*
+import org.jetbrains.kotlinx.dataframe.io.*
+
+fun box(): String {
+    data class Name(val firstName: String, val lastName: String)
+
+    data class Score(val subject: String, val value: Int)
+
+    data class Student(val name: Name, val age: Int, val scores: List<Score>)
+
+    val students = listOf(
+        Student(Name("Alice", "Cooper"), 15, listOf(Score("math", 4), Score("biology", 3))),
+        Student(Name("Bob", "Marley"), 20, listOf(Score("music", 5))),
+    ).toDataFrame()
+
+    students.compareSchemas(strict = true)
+    return "OK"
+}
diff --git a/plugins/kotlin-dataframe/testData/box/toDataFrame_private_class.kt b/plugins/kotlin-dataframe/testData/box/toDataFrame_private_class.kt
new file mode 100644
index 0000000000..1d93d031d4
--- /dev/null
+++ b/plugins/kotlin-dataframe/testData/box/toDataFrame_private_class.kt
@@ -0,0 +1,20 @@
+import org.jetbrains.kotlinx.dataframe.*
+import org.jetbrains.kotlinx.dataframe.annotations.*
+import org.jetbrains.kotlinx.dataframe.api.*
+import org.jetbrains.kotlinx.dataframe.io.*
+
+private data class Name(val firstName: String, val lastName: String)
+
+private data class Score(val subject: String, val value: Int)
+
+private data class Student(val name: Name, val age: Int, val scores: List<Score>)
+
+fun box(): String {
+    val students = listOf(
+        Student(Name("Alice", "Cooper"), 15, listOf(Score("math", 4), Score("biology", 3))),
+        Student(Name("Bob", "Marley"), 20, listOf(Score("music", 5))),
+    ).toDataFrame()
+
+    students.compareSchemas(strict = true)
+    return "OK"
+}
diff --git a/plugins/kotlin-dataframe/testData/box/toDataFrame_private_properties.kt b/plugins/kotlin-dataframe/testData/box/toDataFrame_private_properties.kt
new file mode 100644
index 0000000000..189c831b7e
--- /dev/null
+++ b/plugins/kotlin-dataframe/testData/box/toDataFrame_private_properties.kt
@@ -0,0 +1,20 @@
+import org.jetbrains.kotlinx.dataframe.*
+import org.jetbrains.kotlinx.dataframe.annotations.*
+import org.jetbrains.kotlinx.dataframe.api.*
+import org.jetbrains.kotlinx.dataframe.io.*
+
+data class Name(val firstName: String, val lastName: String)
+
+data class Score(val subject: String, val value: Int)
+
+data class Student(private val name: Name, private val age: Int, val scores: List<Score>)
+
+fun box(): String {
+    val students = listOf(
+        Student(Name("Alice", "Cooper"), 15, listOf(Score("math", 4), Score("biology", 3))),
+        Student(Name("Bob", "Marley"), 20, listOf(Score("music", 5))),
+    ).toDataFrame()
+
+    students.compareSchemas(strict = true)
+    return "OK"
+}
diff --git a/plugins/kotlin-dataframe/tests-gen/org/jetbrains/kotlin/fir/dataframe/DataFrameBlackBoxCodegenTestGenerated.java b/plugins/kotlin-dataframe/tests-gen/org/jetbrains/kotlin/fir/dataframe/DataFrameBlackBoxCodegenTestGenerated.java
index d736fc4081..e4219e4e5b 100644
--- a/plugins/kotlin-dataframe/tests-gen/org/jetbrains/kotlin/fir/dataframe/DataFrameBlackBoxCodegenTestGenerated.java
+++ b/plugins/kotlin-dataframe/tests-gen/org/jetbrains/kotlin/fir/dataframe/DataFrameBlackBoxCodegenTestGenerated.java
@@ -508,6 +508,12 @@ public void testToDataFrame_from() {
     runTest("testData/box/toDataFrame_from.kt");
   }
 
+  @Test
+  @TestMetadata("toDataFrame_local_class.kt")
+  public void testToDataFrame_local_class() {
+    runTest("testData/box/toDataFrame_local_class.kt");
+  }
+
   @Test
   @TestMetadata("toDataFrame_nested.kt")
   public void testToDataFrame_nested() {
@@ -532,6 +538,18 @@ public void testToDataFrame_nullableSubtree() {
     runTest("testData/box/toDataFrame_nullableSubtree.kt");
   }
 
+  @Test
+  @TestMetadata("toDataFrame_private_class.kt")
+  public void testToDataFrame_private_class() {
+    runTest("testData/box/toDataFrame_private_class.kt");
+  }
+
+  @Test
+  @TestMetadata("toDataFrame_private_properties.kt")
+  public void testToDataFrame_private_properties() {
+    runTest("testData/box/toDataFrame_private_properties.kt");
+  }
+
   @Test
   @TestMetadata("toDataFrame_superType.kt")
   public void testToDataFrame_superType() {