diff --git a/contracts/fio.common/fio_common_validator.hpp b/contracts/fio.common/fio_common_validator.hpp
index 88a1145b..97a64859 100644
--- a/contracts/fio.common/fio_common_validator.hpp
+++ b/contracts/fio.common/fio_common_validator.hpp
@@ -112,11 +112,14 @@ namespace fioio {
     }
 
     inline bool validateTokenNameFormat(const string &token) {
-        if(token == "*") {
+        if (token.length() >= 1 && token.length() <= 128) {
+            if (token.find_first_not_of("!@#$%^&*()_+=-;:,.<>/?ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789") !=
+                std::string::npos) {
+                return false;
+            }
             return true;
         }
-
-        return validateChainNameFormat(token);
+        return false;
     }
 
     inline bool validateTPIDFormat(const string &tpid) {