diff --git a/include/proto/httperr.h b/include/proto/httperr.h
index 24a0cd1..749e427 100644
--- a/include/proto/httperr.h
+++ b/include/proto/httperr.h
@@ -25,12 +25,14 @@
 #include <types/httperr.h>
 
 extern const int http_err_codes[HTTP_ERR_SIZE];
-extern const char *http_err_msgs[HTTP_ERR_SIZE];
+extern struct chunk http_err_chunks[HTTP_ERR_SIZE];
 extern const char *HTTP_200;
 extern const char *HTTP_302;
 extern const char *HTTP_303;
 extern const char *HTTP_401_fmt;
 
+struct chunk *error_message(struct session *s, int msgnum);
+
 #endif /* _PROTO_HTTPERR_H */
 
 /*