diff --git a/xorriso/make_docs.sh b/xorriso/make_docs.sh
index 2619ef84..b7478d36 100755
--- a/xorriso/make_docs.sh
+++ b/xorriso/make_docs.sh
@@ -9,11 +9,13 @@
 ( cd xorriso ; makeinfo --no-split ./xorrecord.texi )
 ( cd xorriso ; makeinfo --no-split ./xorriso-tcltk.texi )
 ( cd xorriso-dd-target ; makeinfo --no-split ./xorriso-dd-target.texi )
+( cd test ; makeinfo --no-split ./merge_debian_isos.texi )
 
 xorriso/make_xorriso_1 -auto
 xorriso/make_xorriso_1 -auto -xorrisofs
 xorriso/make_xorriso_1 -auto -xorrecord
 xorriso/make_xorriso_1 -auto -xorriso-tcltk
 xorriso/make_xorriso_1 -auto -xorriso-dd-target
+xorriso/make_xorriso_1 -auto -merge_debian_isos
 
 
diff --git a/xorriso/make_xorriso_1.c b/xorriso/make_xorriso_1.c
index 9c1dfab9..b00f24d5 100644
--- a/xorriso/make_xorriso_1.c
+++ b/xorriso/make_xorriso_1.c
@@ -8,10 +8,11 @@
    or from xorriso/xorrecord.texi to xorriso/xorrecord.1.
    or from xorriso/xorriso-tcltk.texi to xorriso/xorriso-tcltk.1.
    or from xorriso/xorriso-dd-target.texi to xorriso/xorriso-dd-target.1.
+   of from test/merge_debian_iso.texi to test/merge_debian_iso.1
 
    The conversion rules are described at the beginning of xorriso/xorriso.texi
 
-   Copyright 2010 - 2019 Thomas Schmitt, <scdbackup@gmx.net>
+   Copyright 2010 - 2022 Thomas Schmitt, <scdbackup@gmx.net>
 
    Provided under GPL version 2 or later.
 */
@@ -498,6 +499,9 @@ usage:;
    } else if(strcmp(argv[i], "-xorriso-dd-target") == 0) {
      strcpy(name_in, "xorriso-dd-target/xorriso-dd-target.texi");
      strcpy(name_out, "xorriso-dd-target/xorriso-dd-target.1");
+   } else if(strcmp(argv[i], "-merge_debian_isos") == 0) {
+     strcpy(name_in, "test/merge_debian_isos.texi");
+     strcpy(name_out, "test/merge_debian_isos.1");
    } else {
      fprintf(stderr, "%s : unknown option %s\n", argv[0], argv[i]);
      goto usage;