diff --git a/src/content/content-manager.cpp b/src/content/content-manager.cpp
index 8640014a2..94ee69ce9 100644
--- a/src/content/content-manager.cpp
+++ b/src/content/content-manager.cpp
@@ -111,7 +111,7 @@ Content ContentManager::contentListToMultipart (const list<Content> &contents) {
 
 	ContentType contentType = ContentType::Multipart;
 	contentType.setParameter("boundary=" + string(MultipartBoundary));
-	content.setContentType(ContentType::Multipart);
+	content.setContentType(contentType);
 
 	return content;
 }