diff --git a/src/index.js b/src/index.js
index 95ecc92..d90c161 100644
--- a/src/index.js
+++ b/src/index.js
@@ -37,7 +37,7 @@ async function generateCopyTarget(src, dest, { flatten, rename, transform }) {
   return {
     src,
     dest: path.join(destinationFolder, rename ? renameTarget(base, rename, src) : base),
-    ...(transform && { contents: await transform(await fs.readFile(src), base) }),
+    ...(transform && { contents: await transform(await fs.readFile(src), src) }),
     renamed: rename,
     transformed: transform
   }