diff --git a/cognac_gen.sh b/cognac_gen.sh
index 0d870d5..5efa7de 100755
--- a/cognac_gen.sh
+++ b/cognac_gen.sh
@@ -346,7 +346,7 @@ EOF
 		       	   goto ${snake_l}_arg;
 		      }
 
-		     if (i + 1 < ac && av[i + 1][0] == '-' && av[i + 1][1] == '-' && strcmp(av[i + 1] + 2, "SetVar")) {
+		     if (i + 1 < ac && av[i + 1][0] == '-' && av[i + 1][1] == '-' && strcmp(av[i + 1] + 2, "set-var")) {
  		             char *next_a = &av[i + 1][2];
 			     char *str = next_a;
  		     	     char *aa = i + 2 < ac ? av[i + 2] : 0;
@@ -419,9 +419,9 @@ EOF
 					JSON_C_TO_STRING_PRETTY | JSON_C_TO_STRING_NOSLASHESCAPE |
 					color_flag));
 		     }
-		     if (i + 1 < ac && !strcmp(av[i + 1], "--SetVar")) {
+		     if (i + 1 < ac && !strcmp(av[i + 1], "--set-var")) {
 		     	     ++i;
-			     TRY(i + 1 >= ac, "--SetVar require an argument");
+			     TRY(i + 1 >= ac, "--set-var require an argument");
 		     	     if (!jobj)
 			     	jobj = json_tokener_parse(r.buf);
 			     if (parse_variable(jobj, av, ac, i))
diff --git a/main_tpl.c b/main_tpl.c
index 5feaba1..699fb6f 100644
--- a/main_tpl.c
+++ b/main_tpl.c
@@ -365,7 +365,7 @@ int main(int ac, char **av)
 
 	if (ac < 2 || (ac == 2 && !strcmp(av[1], "--help"))) {
 	show_help:
-                printf("Usage: %s [--help] CallName [options] [--Params <param_argument | [--file | --jsonstr-file] <file_name>>]\n"
+                printf("Usage: %s [--help] CallName [options] [--Params <param_argument | [--file | --jsonstr-file] <file_name>>] | --var <variable_name>\n"
                        "options:\n"
                        "\t    --auth-method=METHODE set authentification method, password|accesskey|none\n"
                        "\t    --color               try to colorize json if json-c support it\n"
@@ -373,6 +373,10 @@ int main(int ac, char **av)
 		       "\t    --file PATH           use content of PATH as an agrument for a call, example:\n"
 		       "\t\t\t\toapi-cli CreateCa  --CaPem --file /$CA_DIR/cert.pem\n"
 		       "\t    --jsonstr-file PATH   same as --file, except the content is surrounded by \"\n"
+		       "\t    --set-var ID=VARIABLE_PATH  Create an oapi-cli variable, that can be use with --var\n"
+		       "\t\t\t\tExamples: ./oapi-cli ReadVms --Filters.TagValues[] VM_NAME --set-var id=Vms.0.VmId ReadVms --Filters.VmIds[] --var id\n"
+		       "\t\t\t\twill find the vm with VM_NAME as it's tag, and read it again, but using it's VmId as filter this time\n"
+		       "\t    --var                 use variabble content created by --set-var\n"
 		       "\t\t\t\tand \" inside the file are escape with a \\, this option is useful for CreatePolicy\n"
                        "\t-h, --help [CallName]     this, can be used with call name, example:\n\t\t\t\t%s --help ReadVms\n"
                        "\t    --list-calls          list all calls\n"