diff --git a/tests/api/api-h264-test.c b/tests/api/api-h264-test.c
index e1e8803c1e..0ffdf01ff0 100644
--- a/tests/api/api-h264-test.c
+++ b/tests/api/api-h264-test.c
@@ -154,7 +154,7 @@ static int video_decode_example(const char *input_filename)
                 av_frame_unref(fr);
                 return number_of_written_bytes;
             }
-            printf("%d, %s, %s, %8"PRId64", %8d, 0x%08"PRIx32"\n", video_stream,
+            printf("%d, %10s, %10s, %8"PRId64", %8d, 0x%08"PRIx32"\n", video_stream,
                    av_ts2str(fr->pts), av_ts2str(fr->pkt_dts), fr->duration,
                    number_of_written_bytes, av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes));