diff --git a/doc/examples/decode_audio.c b/doc/examples/decode_audio.c
index f66e577940..fb9a9af2f6 100644
--- a/doc/examples/decode_audio.c
+++ b/doc/examples/decode_audio.c
@@ -170,6 +170,11 @@ 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);