diff --git a/notebooks/visualization/src/com/intellij/notebooks/visualization/r/inlays/components/NotebookOutputSelectAllAction.kt b/notebooks/visualization/src/com/intellij/notebooks/visualization/r/inlays/components/NotebookOutputSelectAllAction.kt
index a9501a7080df..a591a0b463ba 100644
--- a/notebooks/visualization/src/com/intellij/notebooks/visualization/r/inlays/components/NotebookOutputSelectAllAction.kt
+++ b/notebooks/visualization/src/com/intellij/notebooks/visualization/r/inlays/components/NotebookOutputSelectAllAction.kt
@@ -28,7 +28,7 @@ internal class NotebookOutputSelectAllAction : DumbAwareAction() {
   }
 }
 
-val NOTEBOOKS_CONSOLE_OUTPUT_KEY = Key.create<Boolean>("NOTEBOOKS_CONSOLE_OUTPUT")
+private val NOTEBOOKS_CONSOLE_OUTPUT_KEY = Key.create<Boolean>("NOTEBOOKS_CONSOLE_OUTPUT")
 
 fun initOutputTextConsole(editor: Editor,
                           consoleEditor: EditorEx,
@@ -50,4 +50,4 @@ private fun updateOutputTextConsoleUI(consoleEditor: EditorEx, editor: Editor) {
   if (consoleEditor.colorsScheme != editor.colorsScheme) {
     consoleEditor.colorsScheme = editor.colorsScheme
   }
-}
+}
\ No newline at end of file