1 files changed, 1 insertions, 1 deletions

diff --git a/doc/examples/sessions.c b/doc/examples/sessions.c
index 0fe143eb..5b4d4b45 100644
--- a/doc/examples/sessions.c
+++ b/doc/examples/sessions.c
@@ -693,7 +693,7 @@ request_completed_callback (void *cls,
  * too long.
  */
 static void
-expire_sessions ()
+expire_sessions (void)
 {
   struct Session *pos;
   struct Session *prev;