diff -r ff56b28e2cdd -r 60cecca5e484 src/frontend.c
--- a/src/frontend.c	Sun Jun 11 14:05:28 2023 +0200
+++ b/src/frontend.c	Sun Jun 11 15:16:48 2023 +0200
@@ -150,10 +150,10 @@
             cxBufferInit(&fbuf, NULL, 4096, NULL, CX_BUFFER_AUTO_EXTEND);
             cx_stream_copy(inputfile, &fbuf, (cx_read_func) fread,
                            (cx_write_func) cxBufferWrite);
+            cxBufferPut(&fbuf, 0);
             fclose(inputfile);
-            c2html_bformat(
-                    fbuf.space, fbuf.size,
-                    fout, (cx_write_func ) fwrite, hltr,
+            c2html_textformat(
+                    fbuf.space, fout, (cx_write_func ) fwrite, hltr,
                     settings.showlinenumbers
             );
             cxBufferDestroy(&fbuf);