diff --git a/src/app/launcher.php b/src/app/launcher.php
index 81b0b93..fb2a017 100644
--- a/src/app/launcher.php
+++ b/src/app/launcher.php
@@ -1,13 +1,43 @@
 <?php
 namespace nur\sery\app;
 
+use nur\sery\cl;
 use nur\sery\file\TmpfileWriter;
 use nur\sery\os\proc\Cmd;
 use nur\sery\output\msg;
 use nur\sery\StateException;
+use nur\sery\str;
 use nur\sery\wip\app\app;
 
 class launcher {
+  /**
+   * transformer une liste d'argument de la forme
+   * - ["myArg" => $value]  devient  ["--my-arg", "$value"]
+   * - ["myOpt" => true]    devient  ["--my-opt"]
+   * - ["myOpt" => false]   est momis
+   * - les valeurs séquentielles sont prises telles quelles
+   */
+  static function verifix_args(array $args): array {
+    if (cl::is_list($args)) return $args;
+    $fixedArgs = [];
+    $index = 0;
+    foreach ($args as $arg => $value) {
+      if ($arg === $index) {
+        $index++;
+        $fixedArgs[] = $value;
+        continue;
+      } elseif ($value === false) {
+        continue;
+      }
+      $arg = str::us2camel($arg);
+      $arg = str::camel2us($arg, false, "-");
+      $arg = str_replace("_", "-", $arg);
+      $fixedArgs[] = "--$arg";
+      if ($value !== true) $fixedArgs[] = "$value";
+    }
+    return $fixedArgs;
+  }
+
   static function launch(string $appClass, array $args): int {
     $app = app::get();
     $vendorBindir = $app->getVendorbindir();
@@ -18,6 +48,7 @@ class launcher {
     $tmpfile = new TmpfileWriter();
     $tmpfile->serialize($app->getParams());
 
+    $args = self::verifix_args($args);
     $cmd = new Cmd([
       $launch_php,
       "--internal-use", $tmpfile->getFile(),
diff --git a/tests/app/launcherTest.php b/tests/app/launcherTest.php
index a8274ac..d6d9efe 100644
--- a/tests/app/launcherTest.php
+++ b/tests/app/launcherTest.php
@@ -4,4 +4,17 @@ namespace nur\sery\app;
 use nulib\tests\TestCase;
 
 class launcherTest extends TestCase {
+  function testVerifix_args() {
+    self::assertSame([], launcher::verifix_args([]));
+    self::assertSame(["a"], launcher::verifix_args(["a"]));
+    self::assertSame(["a", "--b"], launcher::verifix_args(["a", "--b"]));
+    self::assertSame([], launcher::verifix_args(["a" => false]));
+    self::assertSame(["--a"], launcher::verifix_args(["a" => true]));
+    self::assertSame(["--a", "value"], launcher::verifix_args(["a" => "value"]));
+    self::assertSame(["--a", "52"], launcher::verifix_args(["a" => 52]));
+    self::assertSame(["--aa-bb", "value"], launcher::verifix_args(["aaBb" => "value"]));
+    self::assertSame(["--aa-bb", "value"], launcher::verifix_args(["aa-Bb" => "value"]));
+    self::assertSame(["--aa-bb", "value"], launcher::verifix_args(["aa_Bb" => "value"]));
+    self::assertSame(["---aa-bb", "value"], launcher::verifix_args(["_aa_Bb" => "value"]));
+  }
 }