diff --git a/src/Config.php b/src/Config.php
index 9e4cc74..bf2a666 100644
--- a/src/Config.php
+++ b/src/Config.php
@@ -46,24 +46,19 @@ class Config implements ConfigInterface
      * @param   string $name
      * @param   mixed $value
      * @return  ConfigInterface
+     * @throws  Exception
      */
     public function set(string $name, $value): ConfigInterface
     {
-        try {
-
-            // Check of key in array
-            $this->keyAllowed($name, self::ALLOWED);
-
-            $whatType = \gettype($value);
-            $isType = self::ALLOWED[$name];
+        // Check of key in array
+        $this->keyAllowed($name, self::ALLOWED);
 
-            // Check what type has this value
-            if ($whatType !== $isType) {
-                throw new Exception("Parameter '$name' has wrong type '$whatType'' but should be '$isType''");
-            }
+        $whatType = \gettype($value);
+        $isType = self::ALLOWED[$name];
 
-        } catch (Exception $e) {
-            // __construct
+        // Check what type has this value
+        if ($whatType !== $isType) {
+            throw new Exception("Parameter '$name' has wrong type '$whatType'' but should be '$isType''");
         }
 
         // Save value to array
@@ -91,20 +86,34 @@ class Config implements ConfigInterface
     }
 
     /**
+     * Remove parameter from array by name
+     *
+     * @param   string $parameter
+     * @return  ConfigInterface
+     * @throws  Exception
+     */
+    public function delete(string $parameter): ConfigInterface
+    {
+        // Check of key in array
+        $this->keyAllowed($parameter, self::ALLOWED);
+
+        // Save value to array
+        unset($this->_parameters[$parameter]);
+
+        return $this;
+    }
+
+    /**
      * Return parameter of current config by name
      *
      * @param   string $parameter
      * @return  mixed
+     * @throws  Exception
      */
     public function get(string $parameter)
     {
-        try {
-            // Check of key in array
-            $this->keyAllowed($parameter, self::ALLOWED);
-
-        } catch (Exception $e) {
-            // __construct
-        }
+        // Check of key in array
+        $this->keyAllowed($parameter, self::ALLOWED);
 
         return $this->getPort($parameter) ?? $this->_parameters[$parameter];
     }
diff --git a/src/Interfaces/ConfigInterface.php b/src/Interfaces/ConfigInterface.php
index fdd6d37..84515af 100644
--- a/src/Interfaces/ConfigInterface.php
+++ b/src/Interfaces/ConfigInterface.php
@@ -20,17 +20,17 @@ interface ConfigInterface
         // Password
         'pass' => 'string',
         // RouterOS API port number for access (if not set use default or default with SSL if SSL enabled)
-        'port' => 'int',
+        'port' => 'integer',
         // Enable ssl support (if port is not set this parameter must change default port to ssl port)
-        'ssl' => 'bool',
+        'ssl' => 'boolean',
         // Support of legacy login scheme (true - pre 6.43, false - post 6.43)
-        'legacy' => 'bool',
+        'legacy' => 'boolean',
         // Max timeout for answer from RouterOS
-        'timeout' => 'int',
+        'timeout' => 'integer',
         // Count of attempts to establish TCP session
-        'attempts' => 'int',
+        'attempts' => 'integer',
         // Delay between attempts in seconds
-        'delay' => 'int',
+        'delay' => 'integer',
     ];
 
     /**
@@ -43,6 +43,14 @@ interface ConfigInterface
     public function set(string $name, $value): ConfigInterface;
 
     /**
+     * Remove parameter from array by name
+     *
+     * @param   string $parameter
+     * @return  ConfigInterface
+     */
+    public function delete(string $parameter): ConfigInterface;
+
+    /**
      * Return parameter of current config by name
      *
      * @param   string $parameter