1 files changed, 1 insertions, 1 deletions

diff --git a/doc/chapters/basicauthentication.inc b/doc/chapters/basicauthentication.inc
index 6b7dcdc6..fc2e45ca 100644
--- a/doc/chapters/basicauthentication.inc
+++ b/doc/chapters/basicauthentication.inc
@@ -44,7 +44,7 @@ Not even the headers will be looked at on the first iteration.
 @verbatim
 int answer_to_connection (void *cls, struct MHD_Connection *connection,
                           const char *url, const char *method, const char *version, 
-                          const char *upload_data, unsigned int *upload_data_size,
+                          const char *upload_data, size_t *upload_data_size,
                           void **con_cls)
 {
   if (0 != strcmp(method, "GET")) return MHD_NO;