diff --git a/spring-web/src/main/java/org/springframework/http/converter/StringHttpMessageConverter.java b/spring-web/src/main/java/org/springframework/http/converter/StringHttpMessageConverter.java
index 6e4aed4717a..5a9e81e90da 100644
--- a/spring-web/src/main/java/org/springframework/http/converter/StringHttpMessageConverter.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/StringHttpMessageConverter.java
@@ -29,7 +29,6 @@ import org.springframework.http.HttpInputMessage;
 import org.springframework.http.HttpOutputMessage;
 import org.springframework.http.MediaType;
 import org.springframework.util.Assert;
-import org.springframework.util.StreamUtils;
 
 /**
  * Implementation of {@link HttpMessageConverter} that can read and write strings.
@@ -125,7 +124,7 @@ public class StringHttpMessageConverter extends AbstractHttpMessageConverter<Str
 			headers.setAcceptCharset(getAcceptedCharsets());
 		}
 		Charset charset = getContentTypeCharset(headers.getContentType());
-		StreamUtils.copy(str, charset, outputMessage.getBody());
+		outputMessage.getBody().write(str.getBytes(charset));
 	}