diff --git a/src/storage/s3.js b/src/storage/s3.js
index 251126e90..8358d8584 100644
--- a/src/storage/s3.js
+++ b/src/storage/s3.js
@@ -351,7 +351,7 @@ async function listDir(apiConfig, remotePath, batchSize, marker) {
     const fullRemotePath = path.join(apiConfig.prefix, remotePath);
     const listParams = {
         Bucket: apiConfig.bucket,
-        Prefix: fullRemotePath,
+        Prefix: fullRemotePath + '/', // ensure we list contents of the directory and not match other filenames with prefix
         MaxKeys: batchSize
     };
     if (marker) listParams.ContinuationToken = marker;