diff --git a/pngtest.c b/pngtest.c
index 4911c0e61..510694199 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -913,6 +913,10 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
 #  endif
 #endif
 
+#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION
+   png_set_text_compression_strategy(write_ptr, Z_FILTERED);
+#endif
+
    if (status_dots_requested == 1)
    {
 #ifdef PNG_WRITE_SUPPORTED
diff --git a/pngtest.png b/pngtest.png
index 47d9f7e32..cdf10da7d 100644
Binary files a/pngtest.png and b/pngtest.png differ