diff --git a/.gitlab-ci/ignore-quartz-rgb24.txt b/.gitlab-ci/ignore-quartz-rgb24.txt
index 47a12de09..0941d59cd 100644
--- a/.gitlab-ci/ignore-quartz-rgb24.txt
+++ b/.gitlab-ci/ignore-quartz-rgb24.txt
@@ -1,5 +1,4 @@
 a1-clip-fill-rule
-alpha-similar
 big-empty-box
 big-empty-triangle
 big-little-box
diff --git a/test/reference/quartz-color-font.ref.png b/test/reference/quartz-color-font.ref.png
index e52674ba0..0c185ae1b 100644
Binary files a/test/reference/quartz-color-font.ref.png and b/test/reference/quartz-color-font.ref.png differ