diff --git a/src/cairo.h b/src/cairo.h
index cd529c26e..c2c269d47 100644
--- a/src/cairo.h
+++ b/src/cairo.h
@@ -459,7 +459,6 @@ typedef enum _cairo_format {
  *
  * Since: 1.18
  **/
-#define CAIRO_HAS_DITHER
 typedef enum _cairo_dither {
     CAIRO_DITHER_NONE,
     CAIRO_DITHER_DEFAULT,