diff --git a/notebooks/visualization/src/com/intellij/notebooks/visualization/outputs/impl/InnerComponent.kt b/notebooks/visualization/src/com/intellij/notebooks/visualization/outputs/impl/InnerComponent.kt
index 1cd2642ac354..58cc19654f9a 100644
--- a/notebooks/visualization/src/com/intellij/notebooks/visualization/outputs/impl/InnerComponent.kt
+++ b/notebooks/visualization/src/com/intellij/notebooks/visualization/outputs/impl/InnerComponent.kt
@@ -11,7 +11,7 @@ import javax.swing.JPanel
 import kotlin.math.max
 import kotlin.math.min
 
-internal class InnerComponent : JPanel() {
+class InnerComponent : JPanel() {
   data class Constraint(val widthStretching: NotebookOutputComponentFactory.WidthStretching, val limitedHeight: Boolean)
 
   var maxHeight: Int = Int.MAX_VALUE