diff --git a/src/CliProgram/AutoDiscovery/AutoDiscoveryDirectory.php b/src/CliProgram/AutoDiscovery/AutoDiscoveryDirectory.php
index 38647eb..74c88cc 100644
--- a/src/CliProgram/AutoDiscovery/AutoDiscoveryDirectory.php
+++ b/src/CliProgram/AutoDiscovery/AutoDiscoveryDirectory.php
@@ -127,7 +127,7 @@ class AutoDiscoveryDirectory implements IAutoDiscoverySpot {
 
                 $classes[$fileInfo->getRealPath()] = $this->applyAutoPrefixOnCommand($class->newInstance());
             }
-            catch (ReflectionException $exception) {
+            catch (ReflectionException) {
                 continue;
             }
         }
diff --git a/src/CliProgram/AutoDiscovery/AutoDiscoverySpotsList.php b/src/CliProgram/AutoDiscovery/AutoDiscoverySpotsList.php
index 2556d25..fb40bc6 100644
--- a/src/CliProgram/AutoDiscovery/AutoDiscoverySpotsList.php
+++ b/src/CliProgram/AutoDiscovery/AutoDiscoverySpotsList.php
@@ -7,7 +7,7 @@ use Arrayy\Collection\AbstractCollection;
 /**
  * A list of command auto discovery spots
  *
- * @extends AbstractCollection<AutoDiscoverySpotsList>
+ * @extends AbstractCollection<IAutoDiscoverySpot>
  */
 class AutoDiscoverySpotsList extends AbstractCollection {
     /**
diff --git a/src/CliProgram/AutoDiscovery/TAutoDiscoveryApplication.php b/src/CliProgram/AutoDiscovery/TAutoDiscoveryApplication.php
index 608088d..5d5bc27 100644
--- a/src/CliProgram/AutoDiscovery/TAutoDiscoveryApplication.php
+++ b/src/CliProgram/AutoDiscovery/TAutoDiscoveryApplication.php
@@ -2,6 +2,8 @@
 
 namespace jrosset\CliProgram\AutoDiscovery;
 
+use Symfony\Component\Console\Command\Command;
+
 /**
  * An application with command auto discovery
  */
@@ -29,6 +31,7 @@ trait TAutoDiscoveryApplication {
      * @return $this
      */
     public function addAutoDiscoveredCommands (): static {
+        /** @var IAutoDiscoverySpot $autoDiscoverySpot */
         foreach ($this->getAutoDiscoverySpots() as $autoDiscoverySpot) {
             foreach ($autoDiscoverySpot->getCommands() as $command) {
                 $this->add($command);
@@ -36,4 +39,18 @@ trait TAutoDiscoveryApplication {
         }
         return $this;
     }
+    /**
+     * Normalize command's name and aliases with auto prefixes (if any)
+     *
+     * @param Command $command The commande
+     *
+     * @return Command The command
+     */
+    public function normalizeCommandNameAndAliases (Command $command): Command {
+        /** @var IAutoDiscoverySpot $autoDiscoverySpot */
+        foreach ($this->getAutoDiscoverySpots() as $autoDiscoverySpot) {
+            $command = $autoDiscoverySpot->applyAutoPrefixOnCommand($command);
+        }
+        return $command;
+    }
 }
\ No newline at end of file
diff --git a/src/CliProgram/AutoPrefix/TAutoPrefixManagement.php b/src/CliProgram/AutoPrefix/TAutoPrefixManagement.php
index c749c43..4b73405 100644
--- a/src/CliProgram/AutoPrefix/TAutoPrefixManagement.php
+++ b/src/CliProgram/AutoPrefix/TAutoPrefixManagement.php
@@ -32,18 +32,23 @@ trait TAutoPrefixManagement {
      *
      * @return Command The command
      */
-    protected function applyAutoPrefixOnCommand (Command $command): Command {
+    public function applyAutoPrefixOnCommand (Command $command): Command {
+        /** @var IAutoPrefixManager $autoPrefixManager */
         foreach ($this->getAutoPrefixManagers() as $autoPrefixManager) {
             if (($namesPrefix = $autoPrefixManager->getCommandPrefix($command)) !== null) {
                 if (mb_strlen($namesPrefix) > 0) {
                     $namesPrefix .= ':';
                 }
 
-                $command->setName($namesPrefix . $command->getName());
+                if (self::getNamePrefix($command->getName()) !== $namesPrefix) {
+                    $command->setName($namesPrefix . $command->getName());
+                }
 
                 $aliases = $command->getAliases();
                 foreach ($aliases as &$alias) {
-                    $alias = $namesPrefix . $alias;
+                    if (self::getNamePrefix($alias) !== $namesPrefix) {
+                        $alias = $namesPrefix . $alias;
+                    }
                 }
                 $command->setAliases($aliases);
 
@@ -52,4 +57,22 @@ trait TAutoPrefixManagement {
         }
         return $command;
     }
+    /**
+     * Get the prefix from a command name or alias
+     *
+     * @param string $name The command name or alias
+     *
+     * @return string The prefix (empty if none)
+     */
+    private static function getNamePrefix (string $name): string {
+        $lastPos = mb_strrpos($name, ':');
+        if ($lastPos === false) {
+            return '';
+        }
+        $prefix = mb_substr($name, 0, $lastPos);
+        if (mb_strlen($prefix) > 0) {
+            $prefix .= ':';
+        }
+        return $prefix;
+    }
 }
\ No newline at end of file