diff --git a/README b/README
index 6ebd2b7..a784890 100644
--- a/README
+++ b/README
@@ -157,7 +157,7 @@ VIDEO_CAMERA = "1"
 3.G. Enable offline compositing support
 =======================================
 Set this variable to enable support for dispmanx offline compositing
-DISMANX_OFFLINE = "1"
+DISPMANX_OFFLINE = "1"
 
 This will enable the firmware to fall back to off-line compositing of
 Dispmanx elements. Normally the compositing is done on-line, during scanout,