diff --git a/org.springframework.web/src/main/java/org/springframework/http/MediaType.java b/org.springframework.web/src/main/java/org/springframework/http/MediaType.java
index 185e9e6cab..8a49554871 100644
--- a/org.springframework.web/src/main/java/org/springframework/http/MediaType.java
+++ b/org.springframework.web/src/main/java/org/springframework/http/MediaType.java
@@ -215,7 +215,7 @@ public class MediaType implements Comparable<MediaType> {
 	 * @throws IllegalArgumentException if any of the parameters contain illegal characters
 	 */
 	public MediaType(String type, String subtype, Charset charSet) {
-		this(type, subtype, Collections.singletonMap(PARAM_CHARSET, charSet.toString()));
+		this(type, subtype, Collections.singletonMap(PARAM_CHARSET, charSet.name()));
 	}
 
 	/**