diff --git a/packages/core/types/index.js b/packages/core/types/index.js
index c4b718bcbfc..246ac641b41 100644
--- a/packages/core/types/index.js
+++ b/packages/core/types/index.js
@@ -1595,6 +1595,9 @@ export type Optimizer<ConfigType> = {|
   |}): Async<BundleResult>,
 |};
 
+/**
+ * @section compressor
+ */
 export type Compressor = {|
   compress({|
     stream: stream$Readable,