diff --git a/src/Controller/Commands/CommandGroup.php b/src/Controller/Commands/CommandGroup.php
index cb8cc10..470891d 100644
--- a/src/Controller/Commands/CommandGroup.php
+++ b/src/Controller/Commands/CommandGroup.php
@@ -34,11 +34,11 @@ class CommandGroup
         echo COLOR_YELLOW . str_pad(string: $this->name, length: $longestCommandLength + 1) . COLOR_WHITE . $this->description . COLOR_DEFAULT . PHP_EOL;
         foreach ($this->commands as $command) {
             echo COLOR_GREEN . str_pad(string: ' ', length: $longestCommandLength + 1, pad_type: STR_PAD_LEFT) . $this->name . ':' . $command->getName();
-            foreach ($command->getMandatoryParameters() as $parameter) {
-                echo ' <' . $parameter . '>';
+            foreach ($command->getMandatoryParameters() as $optionals) {
+                echo ' <' . $optionals . '>';
             }
-            foreach ($command->getOptionalParameters() as $parameter) {
-                echo ' {' . $parameter . '}';
+            foreach ($command->getOptionalParameters() as $mandatory) {
+                echo ' {' . $mandatory . '}';
             }
             echo COLOR_WHITE . ' ' . $command->getDescription();
             echo COLOR_DEFAULT . PHP_EOL;