diff --git a/libavfilter/buffersrc.c b/libavfilter/buffersrc.c
index f768063309..8f7032f993 100644
--- a/libavfilter/buffersrc.c
+++ b/libavfilter/buffersrc.c
@@ -195,7 +195,7 @@ do {                                                                    \
     ref_out = av_buffer_create(data, data_size, compat_unref_buffer,    \
                                dummy_ref, 0);                           \
     if (!ref_out) {                                                     \
-        av_freep(&dummy_ref);                                           \
+        av_buffer_unref(&dummy_ref);                                    \
         av_frame_unref(frame);                                          \
         ret = AVERROR(ENOMEM);                                          \
         goto fail;                                                      \