diff --git a/nanohttp.h b/nanohttp.h
index 9ae38ea..8551156 100644
--- a/nanohttp.h
+++ b/nanohttp.h
@@ -9,7 +9,8 @@
 #ifndef __NANO_HTTP_H__
 #define __NANO_HTTP_H__
 int	xmlNanoHTTPFetch	(const char *URL,
-				 const char *filename);
+				 const char *filename,
+				 char **contentType);
 void *	xmlNanoHTTPMethod	(const char *URL,
 				 const char *method,
 				 const char *input,