diff --git a/notebooks/tables/intellij.notebooks.tables.iml b/notebooks/tables/intellij.notebooks.tables.iml
index 40c7649cf931..21008657627b 100644
--- a/notebooks/tables/intellij.notebooks.tables.iml
+++ b/notebooks/tables/intellij.notebooks.tables.iml
@@ -9,5 +9,6 @@
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" name="kotlin-stdlib" level="project" />
+    <orderEntry type="module" module-name="intellij.platform.util" />
   </component>
 </module>
\ No newline at end of file
diff --git a/notebooks/tables/src/com/intellij/notebooks/tables/CommandOutputType.kt b/notebooks/tables/src/com/intellij/notebooks/tables/CommandOutputType.kt
index 7811730d64ad..888f0480e143 100644
--- a/notebooks/tables/src/com/intellij/notebooks/tables/CommandOutputType.kt
+++ b/notebooks/tables/src/com/intellij/notebooks/tables/CommandOutputType.kt
@@ -1,5 +1,8 @@
 package com.intellij.notebooks.tables
 
+import com.intellij.openapi.util.IntellijInternalApi
+
+@IntellijInternalApi
 enum class CommandOutputType {
   STREAM, DISPLAY
 }
diff --git a/notebooks/tables/src/com/intellij/notebooks/tables/TableCommandParameters.kt b/notebooks/tables/src/com/intellij/notebooks/tables/TableCommandParameters.kt
index 640e44032c7c..51eb359f4f9b 100644
--- a/notebooks/tables/src/com/intellij/notebooks/tables/TableCommandParameters.kt
+++ b/notebooks/tables/src/com/intellij/notebooks/tables/TableCommandParameters.kt
@@ -1,3 +1,6 @@
 package com.intellij.notebooks.tables
 
+import com.intellij.openapi.util.IntellijInternalApi
+
+@IntellijInternalApi
 interface TableCommandParameters
diff --git a/notebooks/tables/src/com/intellij/notebooks/tables/TableCommandType.kt b/notebooks/tables/src/com/intellij/notebooks/tables/TableCommandType.kt
index 513313d820f0..e1c6e5eaa5cb 100644
--- a/notebooks/tables/src/com/intellij/notebooks/tables/TableCommandType.kt
+++ b/notebooks/tables/src/com/intellij/notebooks/tables/TableCommandType.kt
@@ -1,5 +1,8 @@
 package com.intellij.notebooks.tables
 
+import com.intellij.openapi.util.IntellijInternalApi
+
+@IntellijInternalApi
 enum class TableCommandType {
   DF_INFO, SLICE, DF_DESCRIBE
 }