diff --git a/xorriso/base_obj.c b/xorriso/base_obj.c
index 0cc9e9e3..d0d46e68 100644
--- a/xorriso/base_obj.c
+++ b/xorriso/base_obj.c
@@ -242,6 +242,7 @@ int Xorriso_new(struct XorrisO ** xorriso,char *progname, int flag)
 
  m->jigdo_params= NULL;
  m->jigdo_values= NULL;
+ m->libjte_params_given= 0;
  m->loaded_boot_bin_lba= 0;
  m->loaded_boot_cat_path[0]= 0;
  m->allow_graft_points= 0;
diff --git a/xorriso/lib_mgt.c b/xorriso/lib_mgt.c
index 915f1233..4a98813a 100644
--- a/xorriso/lib_mgt.c
+++ b/xorriso/lib_mgt.c
@@ -610,6 +610,7 @@ int Xorriso_jigdo_interpreter(struct XorrisO *xorriso, char *aspect, char *arg,
    libjte_destroy(&(xorriso->libjte_handle));
    Xorriso_lst_destroy_all(&(xorriso->jigdo_params), 0);
    Xorriso_lst_destroy_all(&(xorriso->jigdo_values), 0);
+   xorriso->libjte_params_given= 0;
    return(1);
  }
  ret= Xorriso_assert_jte_handle(xorriso, 0);
@@ -622,9 +623,11 @@ int Xorriso_jigdo_interpreter(struct XorrisO *xorriso, char *aspect, char *arg,
      libjte_set_verbose(jte, 1);
      /* Direct libjte messages to stderr, rather than message list */
      libjte_set_error_behavior(xorriso->libjte_handle, 1, 0);
+     xorriso->libjte_params_given|= 2;
    } else if(strcmp(arg, "off") == 0) {
      libjte_set_verbose(jte, 0);
      libjte_set_error_behavior(xorriso->libjte_handle, 0, 0);
+     xorriso->libjte_params_given&= ~2;
    } else
      goto bad_arg;
  } else if(strcmp(aspect, "template_path") == 0 ||
@@ -632,52 +635,62 @@ int Xorriso_jigdo_interpreter(struct XorrisO *xorriso, char *aspect, char *arg,
    ret= libjte_set_template_path(jte, arg);
    if(ret <= 0)
      goto jte_failed;
+   xorriso->libjte_params_given|= 4;
  } else if(strcmp(aspect, "jigdo_path") == 0 ||
            strcmp(aspect, "-jigdo-jigdo") == 0) {
    ret= libjte_set_jigdo_path(jte, arg);
    if(ret <= 0)
      goto jte_failed;
+   xorriso->libjte_params_given|= 8;
  } else if(strcmp(aspect, "md5_path") == 0 ||
            strcmp(aspect, "-md5-list") == 0) {
    ret= libjte_set_md5_path(jte, arg);
    if(ret <= 0)
      goto jte_failed;
+   xorriso->libjte_params_given|= 16;
  } else if(strcmp(aspect, "min_size") == 0 ||
            strcmp(aspect, "-jigdo-min-file-size") == 0) {
    num= Scanf_io_size(arg, 0);
    ret= libjte_set_min_size(jte, num);
    if(ret <= 0)
      goto jte_failed;
+   xorriso->libjte_params_given|= 32;
  } else if(strcmp(aspect, "checksum_iso") == 0 ||
            strcmp(aspect, "-checksum_algorithm_iso") == 0) {
    ret= libjte_set_checksum_iso(jte, arg);
    if(ret <= 0)
      goto jte_failed;
+   xorriso->libjte_params_given|= 64;
  } else if(strcmp(aspect, "checksum_template") == 0 ||
            strcmp(aspect, "-checksum_algorithm_template") == 0) {
    ret= libjte_set_checksum_template(jte, arg);
    if(ret <= 0)
      goto jte_failed;
+   xorriso->libjte_params_given|= 128;
  } else if(strcmp(aspect, "compression") == 0 ||
            strcmp(aspect, "-jigdo-template-compress") == 0) {
    ret= libjte_set_compression(jte, arg);
    if(ret <= 0)
      goto jte_failed;
+   xorriso->libjte_params_given|= 256;
  } else if(strcmp(aspect, "exclude") == 0 ||
            strcmp(aspect, "-jigdo-exclude") == 0) {
    ret= libjte_add_exclude(jte, arg);
    if(ret <= 0)
      goto jte_failed;
+   xorriso->libjte_params_given|= 512;
  } else if(strcmp(aspect, "demand_md5") == 0 ||
            strcmp(aspect, "-jigdo-force-md5") == 0) {
    ret= libjte_add_md5_demand(jte, arg);
    if(ret <= 0)
      goto jte_failed;
+   xorriso->libjte_params_given|= 1024;
  } else if(strcmp(aspect, "mapping") == 0 ||
            strcmp(aspect, "-jigdo-map") == 0) {
    ret= libjte_add_mapping(jte, arg);
    if(ret <= 0)
      goto jte_failed;
+   xorriso->libjte_params_given|= 2048;
  } else {
    sprintf(xorriso->info_text, "-jigdo: unknown aspect '%s'", aspect); 
    Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
diff --git a/xorriso/write_run.c b/xorriso/write_run.c
index 822425d6..acbac4b0 100644
--- a/xorriso/write_run.c
+++ b/xorriso/write_run.c
@@ -769,14 +769,14 @@ int Xorriso_write_session(struct XorrisO *xorriso, int flag)
                     xorriso->vol_uuid);
 
 #ifdef Xorriso_with_libjtE
- if(xorriso->libjte_handle) {
+ if(xorriso->libjte_handle && (xorriso->libjte_params_given & (4 | 8))) {
+
+   /* >>> Check whether the mandatory parameters are set */;
+
    ret= libjte_set_outfile(xorriso->libjte_handle, xorriso->outdev);
    Xorriso_process_msg_queues(xorriso, 0);
    if(ret <= 0)
      goto ex;
-
-   /* >>> Check whether the mandatory parameters are set */;
-
    isoburn_igopt_attach_jte(sopts, xorriso->libjte_handle);
 
    /* Padding to be done by libisofs, not by libburn */
diff --git a/xorriso/xorriso_private.h b/xorriso/xorriso_private.h
index 52227ceb..21c537a1 100644
--- a/xorriso/xorriso_private.h
+++ b/xorriso/xorriso_private.h
@@ -359,7 +359,12 @@ struct XorrisO { /* the global context of xorriso */
  /* List of -jigdo parameters since the most recent -jigdo clear */
  struct Xorriso_lsT *jigdo_params;
  struct Xorriso_lsT *jigdo_values;
-
+ int libjte_params_given; /* bits: 0= outfile , 1= verbosity , 2= template_path
+                                   3= jigdo_path , 4= md5_path , 5= min_size
+                                   6= checksum_iso , 7= checksum_template
+                                   8= compression , 9= exclude , 10= demand_md5
+                                  11= mapping
+                          */
 
  /* LBA of boot image after image loading */
  int loaded_boot_bin_lba;
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 2ce2e52f..ce6105ae 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2010.11.23.193708"
+#define Xorriso_timestamP "2010.11.23.200346"