diff --git a/tests/ref/fate/source b/tests/ref/fate/source
index ad1e5b95d6..1158de1a06 100644
--- a/tests/ref/fate/source
+++ b/tests/ref/fate/source
@@ -9,6 +9,7 @@ libavcodec/log2_tab.c
 libavcodec/reverse.c
 libavdevice/file_open.c
 libavdevice/reverse.c
+libavfilter/af_arnndn.c
 libavfilter/log2_tab.c
 libavformat/file_open.c
 libavformat/golomb_tab.c