diff --git a/index.js b/index.js
index d153ac7..0344ff2 100644
--- a/index.js
+++ b/index.js
@@ -187,6 +187,10 @@ function gerberToImage(gerber, imgConfig, tmpDir, outputDir) {
 }
 
 module.exports = {
+  cleanupFiles,
+  getLayers,
+  getLayers2,
+  extractArchive,
   config,
   gerberToImage,
 };