diff --git a/docs/API.md b/docs/API.md
index 4824c75f..dea53c77 100644
--- a/docs/API.md
+++ b/docs/API.md
@@ -123,7 +123,7 @@ var s3Client = new Minio.Client({
 ## 2. Bucket operations
 <a name="makeBucket"></a>
 
-### makeBucket(bucketName, region[, makeOpts , callback])
+### makeBucket(bucketName[, region, makeOpts , callback])
 
 Creates a new bucket.