diff --git a/libavfilter/asrc_anullsrc.c b/libavfilter/asrc_anullsrc.c
index ed7186d89b..140ad46da5 100644
--- a/libavfilter/asrc_anullsrc.c
+++ b/libavfilter/asrc_anullsrc.c
@@ -31,7 +31,7 @@
 
 static int request_frame(AVFilterLink *link)
 {
-    return -1;
+    return AVERROR_EOF;
 }
 
 static const AVFilterPad avfilter_asrc_anullsrc_outputs[] = {