diff --git a/libraries/package-extractor/src/PackageExtractor.ts b/libraries/package-extractor/src/PackageExtractor.ts
index 07c83729292..18c6acf84d0 100644
--- a/libraries/package-extractor/src/PackageExtractor.ts
+++ b/libraries/package-extractor/src/PackageExtractor.ts
@@ -124,6 +124,11 @@ export interface IExtractorProjectConfiguration {
   dependenciesToExclude?: string[];
 }
 
+/**
+ * The extractor configuration for individual dependencies.
+ *
+ * @public
+ */
 export interface IExtractorDependencyConfiguration {
   /**
    * The name of dependency
diff --git a/libraries/package-extractor/src/tests/Utils.ts b/libraries/package-extractor/src/tests/Utils.ts
index d6d6c827151..6e4171a9597 100644
--- a/libraries/package-extractor/src/tests/Utils.ts
+++ b/libraries/package-extractor/src/tests/Utils.ts
@@ -1,16 +1,16 @@
 import path from 'path';
 import { FileSystem, JsonFile } from '@rushstack/node-core-library';
-interface RushProject {
+interface IRushProject {
   packageName: string;
   projectFolder: string;
 }
-export const loadRushProjectFromConfigurationFile = (filepath: string): RushProject[] => {
+export const loadRushProjectFromConfigurationFile = (filepath: string): IRushProject[] => {
   if (!FileSystem.exists(filepath) || !filepath.endsWith('rush.json')) {
     throw new Error('File not exist or not correct');
   }
 
   const rushConfig: {
-    projects: RushProject[];
+    projects: IRushProject[];
   } = JsonFile.parseString(FileSystem.readFile(filepath).toString());
   return rushConfig.projects.map((p) => {
     return {