diff --git a/index.js b/index.js
index cecf8b6..18b227a 100644
--- a/index.js
+++ b/index.js
@@ -127,7 +127,7 @@ module.exports = (source, destination, {
 			}
 		};
 
-		return pAll(sources.map(async source => {
+		return pAll(sources.map(source => async () => {
 			const to = preprocessDestinationPath(source.relativePath, destination, options);
 
 			try {