diff --git a/types/minio/index.d.ts b/types/minio/index.d.ts
index ae5c390839..53ca4fa6cd 100644
--- a/types/minio/index.d.ts
+++ b/types/minio/index.d.ts
@@ -47,9 +47,9 @@ export interface BucketItem {
 
 export interface BucketItemStat {
     size: number;
-    contentType: string;
     etag: string;
     lastModified: Date;
+    metaData: ItemBucketMetadata;
 }
 
 export interface IncompleteUploadedBucketItem {
@@ -69,6 +69,10 @@ export interface PostPolicyResult {
     };
 }
 
+export interface ItemBucketMetadata {
+    [key: string]: any;
+}
+
 // No need to export this. But without it - linter error.
 export class TargetConfig {
     setId(id: any): void;
@@ -113,11 +117,11 @@ export class Client {
 
     putObject(bucketName: string, objectName: string, stream: Stream|Buffer|string, callback: ResultCallback<string>): void;
     putObject(bucketName: string, objectName: string, stream: Stream|Buffer|string, size: number, callback: ResultCallback<string>): void;
-    putObject(bucketName: string, objectName: string, stream: Stream|Buffer|string, size: number, cotentType: string, callback: ResultCallback<string>): void;
-    putObject(bucketName: string, objectName: string, stream: Stream|Buffer|string, size?: number, cotentType?: string): Promise<string>;
+    putObject(bucketName: string, objectName: string, stream: Stream|Buffer|string, size: number, metaData: ItemBucketMetadata, callback: ResultCallback<string>): void;
+    putObject(bucketName: string, objectName: string, stream: Stream|Buffer|string, size?: number, metaData?: ItemBucketMetadata): Promise<string>;
 
-    fPutObject(bucketName: string, objectName: string, filePath: string, contentType: string, callback: ResultCallback<string>): void;
-    fPutObject(bucketName: string, objectName: string, filePath: string, contentType: string): Promise<string>;
+    fPutObject(bucketName: string, objectName: string, filePath: string, metaData: ItemBucketMetadata, callback: ResultCallback<string>): void;
+    fPutObject(bucketName: string, objectName: string, filePath: string, metaData: ItemBucketMetadata): Promise<string>;
 
     copyObject(bucketName: string, objectName: string, sourceObject: string, conditions: CopyConditions, callback: ResultCallback<BucketItemCopy>): void;
     copyObject(bucketName: string, objectName: string, sourceObject: string, conditions: CopyConditions): Promise<BucketItemCopy>;
diff --git a/types/minio/minio-tests.ts b/types/minio/minio-tests.ts
index 2da249e87d..46d83201f7 100644
--- a/types/minio/minio-tests.ts
+++ b/types/minio/minio-tests.ts
@@ -44,15 +44,21 @@ minio.getPartialObject('testBucket', 'hello.jpg', 10, 20);
 minio.fGetObject('testBucket', 'hello.jpg', 'file/path', (error: Error|null) => { console.log(error); });
 minio.fGetObject('testBucket', 'hello.jpg', 'file/path');
 
+const metaData = {
+    'Content-Type': 'text/html',
+    'Content-Language': 123,
+    'X-Amz-Meta-Testing': 1234,
+    example: 5678
+};
 minio.putObject('testBucket', 'hello.jpg', new Stream(), (error: Error|null, etag: string) => { console.log(error, etag); });
 minio.putObject('testBucket', 'hello.jpg', new Buffer('string'), 100, (error: Error|null, etag: string) => { console.log(error, etag); });
-minio.putObject('testBucket', 'hello.txt', 'hello.txt content', 100, 'text/plain', (error: Error|null, etag: string) => { console.log(error, etag); });
+minio.putObject('testBucket', 'hello.txt', 'hello.txt content', 100, metaData, (error: Error|null, etag: string) => { console.log(error, etag); });
 minio.putObject('testBucket', 'hello.jpg', new Stream());
 minio.putObject('testBucket', 'hello.jpg', new Buffer('string'), 100);
-minio.putObject('testBucket', 'hello.txt', 'hello.txt content', 100, 'text/plain');
+minio.putObject('testBucket', 'hello.txt', 'hello.txt content', 100, metaData);
 
-minio.fPutObject('testBucket', 'hello.jpg', 'file/path', 'image/jpg', (error: Error|null, etag: string) => { console.log(error, etag); });
-minio.fPutObject('testBucket', 'hello.jpg', 'file/path', 'image/jpg');
+minio.fPutObject('testBucket', 'hello.jpg', 'file/path', metaData, (error: Error|null, etag: string) => { console.log(error, etag); });
+minio.fPutObject('testBucket', 'hello.jpg', 'file/path', metaData);
 
 const conditions = new Minio.CopyConditions();
 conditions.setMatchETag('bd891862ea3e22c93ed53a098218791d');