diff --git a/examples/cmdlnopts.c b/examples/cmdlnopts.c
index d576cf4..cc818f9 100644
--- a/examples/cmdlnopts.c
+++ b/examples/cmdlnopts.c
@@ -56,7 +56,7 @@ static glob_pars const Gdefault = {
 // you can repeat the same `val` for several long-only options without any problem
 static sl_option_t cmdlnopts[] = {
     // short option in only-long options should be zeroed, or you can add flag to set it to given value
-    {"lo0",     NEED_ARG,   NULL,     0,    arg_int,    APTR(&G.lo0),       _("only long arg 0 (int)")},
+    {"longonly",NEED_ARG,   NULL,     0,    arg_int,    APTR(&G.lo0),       _("only long arg 0 (int)")},
     // for short-only options long option can be NULL
     {NULL,      NEED_ARG,   NULL,   '0',    arg_string, APTR(&G.so1),       _("only short arg 1 (string)")},
     // if you change `arg_int` to `arg_none`, value will be incremented each `-h`
@@ -73,7 +73,7 @@ static sl_option_t cmdlnopts[] = {
     {"Int",     MULT_PAR,   NULL,   'I',    arg_int,    APTR(&G.intarr),    _("integer parameter")},
     {"Dbl",     MULT_PAR,   NULL,   'D',    arg_double, APTR(&G.dblarr),    _("double parameter")},
     {"Str",     MULT_PAR,   NULL,   'S',    arg_string, APTR(&G.strarr),    _("string parameter")},
-    {"lo1",     NEED_ARG,   NULL,     0,    arg_int,    APTR(&G.lo1),       _("only long arg 1 (int)")},
+    {"long1",     NEED_ARG,   NULL,   0,    arg_int,    APTR(&G.lo1),       _("only long arg 1 (int)")},
     end_option
 };
 
diff --git a/examples/options.c b/examples/options.c
index 1642da0..aeb39a5 100644
--- a/examples/options.c
+++ b/examples/options.c
@@ -93,9 +93,9 @@ int main(int argc, char *argv[]){
             printf("String[%d]: \"%s\"\n", i, *p++);
         }
     }
-    if(GP->lo0 != INT_MIN) printf("You set lo0 to %d\n", GP->lo0);
-    if(GP->lo1 != INT_MIN) printf("You set lo1 to %d\n", GP->lo1);
-    if(GP->lo2 != INT_MIN) printf("You set lo2 to %d\n", GP->lo2);
+    if(GP->lo0 != INT_MIN) printf("You set long 0 to %d\n", GP->lo0);
+    if(GP->lo1 != INT_MIN) printf("You set long 1 to %d\n", GP->lo1);
+    if(GP->lo2 != INT_MIN) printf("You set long 2 to %d\n", GP->lo2);
     if(GP->so1){
         sl_remove_quotes(GP->so1);
         printf("String so1=%s\n", GP->so1);
diff --git a/parseargs.c b/parseargs.c
index 421a4e1..e66f1ef 100644
--- a/parseargs.c
+++ b/parseargs.c
@@ -127,6 +127,7 @@ static int get_optind(const char *key, int opt, sl_option_t *options, void (*hel
     int oind = 0, theopt = opt;
     sl_option_t *opts = options;
     assert(opts);
+    //printf("key: %s\n", key);
     // `opt` should be ':' for "missed arguments", '?' for "not found" and short flag if found and checked
     if(opt == '?'){ // not found
         fprintf(stderr, _("No such parameter: `%s`\n"), key);
@@ -134,18 +135,25 @@ static int get_optind(const char *key, int opt, sl_option_t *options, void (*hel
         return -1; // never reached until `helpfun` changed
     }else if(opt == ':') theopt = optopt; // search to show helpstring "need parameter"
     if(key[1] != '-'){ // search by unique short option
+        //printf("Short %c\n", theopt);
         for(oind = 0; opts->help && opts->val != theopt; oind++, opts++){
             DBG("cmp %c and %c", theopt, opts->val);
         }
     }else{ // search by long option
         key += 2;
+        int l = strlen(key);
         for(oind = 0; opts->help; oind++, opts++){
-            if(opts->name && 0 == strcmp(key, opts->name)) break;
+            //printf("comp %s and %s\n", key, opts->name);
+            if(opts->name && 0 == strncmp(key, opts->name, l)) break;
         }
     }
-    if(!opts->help) return -1;
+    if(!opts->help){
+        //printf("Not found\n");
+        return -1;
+    }
     if(opt == ':'){
-        fprintf(stderr, _("Parameter `%s` needs value\n"), key);
+        if(options[oind].name) fprintf(stderr, _("Parameter `--%s` needs value\n"), options[oind].name);
+        else fprintf(stderr, _("Parameter `-%c` needs value\n"), options[oind].val);
         helpfun(oind, options);
         return -1; // never reached until `helpfun` changed
     }