diff --git a/doc/examples/decode_audio.c b/doc/examples/decode_audio.c
index e7b27d3ada4147eca2e219dce5a95c0781ee8129..d952b4923b982a45f435b336520aca4f03e926bd 100644
--- a/doc/examples/decode_audio.c
+++ b/doc/examples/decode_audio.c
@@ -179,6 +179,11 @@ int main(int argc, char **argv)
         }
     }
 
+    /* flush the decoder */
+    pkt->data = NULL;
+    pkt->size = 0;
+    decode(c, pkt, decoded_frame, outfile);
+
     fclose(outfile);
     fclose(f);