diff --git a/twitter4j-http2-support/src/main/java/twitter4j/AlternativeHttpClientImpl.java b/twitter4j-http2-support/src/main/java/twitter4j/AlternativeHttpClientImpl.java
index 84acc5efc..576c0d867 100644
--- a/twitter4j-http2-support/src/main/java/twitter4j/AlternativeHttpClientImpl.java
+++ b/twitter4j-http2-support/src/main/java/twitter4j/AlternativeHttpClientImpl.java
@@ -147,12 +147,12 @@ private RequestBody getRequestBody(HttpRequest req) throws UnsupportedEncodingEx
 			for(HttpParameter parameter:req.getParameters()){
 				if(parameter.isFile()) {
 					multipartBuilder.addPart(
-							Headers.of("Content-Disposition","form-data; name=\"" + parameter.getName() + "\"; filename=\"" + parameter.getFile().getName()),
+							Headers.of("Content-Disposition","form-data; name=\"" + parameter.getName() + "\"; filename=\"" + parameter.getFile().getName()+"\""),
 							RequestBody.create(MediaType.parse(parameter.getContentType()),parameter.getFile())
 					);
 				}else {
 					multipartBuilder.addPart(
-							Headers.of("Content-Disposition","form-data; name=" + parameter.getName()),
+							Headers.of("Content-Disposition","form-data; name=\"" + parameter.getName()+"\""),
 							RequestBody.create(TEXT,parameter.getValue().getBytes("UTF-8"))
 					);
 				}