diff --git a/codec-http/src/main/java/io/netty/handler/codec/http/multipart/DiskFileUpload.java b/codec-http/src/main/java/io/netty/handler/codec/http/multipart/DiskFileUpload.java
index 5d2186c80d..1932004dd6 100644
--- a/codec-http/src/main/java/io/netty/handler/codec/http/multipart/DiskFileUpload.java
+++ b/codec-http/src/main/java/io/netty/handler/codec/http/multipart/DiskFileUpload.java
@@ -129,7 +129,7 @@ public class DiskFileUpload extends AbstractDiskHttpData implements FileUpload {
             HttpPostBodyUtil.FORM_DATA + "; " + HttpPostBodyUtil.NAME + "=\"" + getName() +
                 "\"; " + HttpPostBodyUtil.FILENAME + "=\"" + filename + "\"\r\n" +
                 HttpHeaders.Names.CONTENT_TYPE + ": " + contentType +
-                (charset != null? "; " + HttpHeaders.Values.CHARSET + '=' + charset + "\r\n" : "\r\n") +
+                (charset != null? "; " + HttpHeaders.Values.CHARSET + '=' + charset.name() + "\r\n" : "\r\n") +
                 HttpHeaders.Names.CONTENT_LENGTH + ": " + length() + "\r\n" +
                 "Completed: " + isCompleted() +
                 "\r\nIsInMemory: " + isInMemory() + "\r\nRealFile: " +
diff --git a/codec-http/src/main/java/io/netty/handler/codec/http/multipart/HttpPostRequestEncoder.java b/codec-http/src/main/java/io/netty/handler/codec/http/multipart/HttpPostRequestEncoder.java
index a940e7d30c..2d24532ec6 100644
--- a/codec-http/src/main/java/io/netty/handler/codec/http/multipart/HttpPostRequestEncoder.java
+++ b/codec-http/src/main/java/io/netty/handler/codec/http/multipart/HttpPostRequestEncoder.java
@@ -492,7 +492,7 @@ public class HttpPostRequestEncoder implements ChunkedInput<HttpContent> {
                 internal.addValue(HttpHeaders.Names.CONTENT_TYPE + ": " +
                         HttpPostBodyUtil.DEFAULT_TEXT_CONTENT_TYPE + "; " +
                         HttpHeaders.Values.CHARSET + '='
-                        + localcharset + "\r\n");
+                        + localcharset.name() + "\r\n");
             }
             // CRLF between body header and data
             internal.addValue("\r\n");
@@ -644,7 +644,8 @@ public class HttpPostRequestEncoder implements ChunkedInput<HttpContent> {
                 internal.addValue("\r\n" + HttpHeaders.Names.CONTENT_TRANSFER_ENCODING + ": "
                         + HttpPostBodyUtil.TransferEncodingMechanism.BINARY.value() + "\r\n\r\n");
             } else if (fileUpload.getCharset() != null) {
-                internal.addValue("; " + HttpHeaders.Values.CHARSET + '=' + fileUpload.getCharset() + "\r\n\r\n");
+                internal.addValue("; " + HttpHeaders.Values.CHARSET + '='
+                                  + fileUpload.getCharset().name() + "\r\n\r\n");
             } else {
                 internal.addValue("\r\n\r\n");
             }
diff --git a/codec-http/src/main/java/io/netty/handler/codec/http/multipart/MemoryFileUpload.java b/codec-http/src/main/java/io/netty/handler/codec/http/multipart/MemoryFileUpload.java
index a9ad28b1f4..c644e84db2 100644
--- a/codec-http/src/main/java/io/netty/handler/codec/http/multipart/MemoryFileUpload.java
+++ b/codec-http/src/main/java/io/netty/handler/codec/http/multipart/MemoryFileUpload.java
@@ -123,7 +123,7 @@ public class MemoryFileUpload extends AbstractMemoryHttpData implements FileUplo
             HttpPostBodyUtil.FORM_DATA + "; " + HttpPostBodyUtil.NAME + "=\"" + getName() +
             "\"; " + HttpPostBodyUtil.FILENAME + "=\"" + filename + "\"\r\n" +
             HttpHeaders.Names.CONTENT_TYPE + ": " + contentType +
-            (charset != null? "; " + HttpHeaders.Values.CHARSET + '=' + charset + "\r\n" : "\r\n") +
+            (charset != null? "; " + HttpHeaders.Values.CHARSET + '=' + charset.name() + "\r\n" : "\r\n") +
             HttpHeaders.Names.CONTENT_LENGTH + ": " + length() + "\r\n" +
             "Completed: " + isCompleted() +
             "\r\nIsInMemory: " + isInMemory();