diff --git a/packages/babel-core/src/config/item.js b/packages/babel-core/src/config/item.js
index 52c167fab877..f1d8e93bc5af 100644
--- a/packages/babel-core/src/config/item.js
+++ b/packages/babel-core/src/config/item.js
@@ -64,6 +64,7 @@ class ConfigItem {
    */
   _descriptor: UnloadedDescriptor;
 
+  // TODO(Babel 8): Check if this symbol needs to be updated
   /**
    * Used to detect ConfigItem instances from other Babel instances.
    */