diff --git a/changelog.txt b/changelog.txt
index e65d2974..d41857d5 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -25,6 +25,7 @@ FIX:        Fix missing return value in gfxQueueFSyncPut().
 FIX:        Fix missing return value in gfxQueueFSyncPush().
 FIX:        Fix missing return value in gfxQueueFSyncInsert().
 FEATURE:    Adding support for FreeBSD.
+FIX:        Fix incorrect calls to mmap() and sem_open() in SDL2 driver (lax operating systems such as Linux & MacOS were silently tolerating these).
 
 
 *** Release 2.9 ***