diff --git a/lib/mprintf.c b/lib/mprintf.c
index b6d9a9c55..f5fc9962f 100644
--- a/lib/mprintf.c
+++ b/lib/mprintf.c
@@ -32,7 +32,7 @@
  *
  * If you ever want truly portable and good *printf() clones, the project that
  * took on from here is named 'Trio' and you find more details on the trio web
- * page at https://daniel.haxx.se/trio/
+ * page at https://daniel.haxx.se/projects/trio/
  */
 
 #include "curl_setup.h"