diff --git a/fftools/ffmpeg_filter.c b/fftools/ffmpeg_filter.c
index 7ec328e04e..2f2b297932 100644
--- a/fftools/ffmpeg_filter.c
+++ b/fftools/ffmpeg_filter.c
@@ -1408,7 +1408,7 @@ int fg_finalise_bindings(void)
         for (int j = 0; j < fg->nb_outputs; j++) {
             OutputFilter *output = fg->outputs[j];
             if (!output->bound) {
-                av_log(filtergraphs[j], AV_LOG_FATAL,
+                av_log(fg, AV_LOG_FATAL,
                        "Filter %s has an unconnected output\n", output->name);
                 return AVERROR(EINVAL);
             }