diff --git a/test/Integration/Command/ExecCommandTest.php b/test/Integration/Command/ExecCommandTest.php
index f65d59d..8005fe5 100644
--- a/test/Integration/Command/ExecCommandTest.php
+++ b/test/Integration/Command/ExecCommandTest.php
@@ -104,7 +104,7 @@ public function testWithEmptyDrupal(): void {
    * @testdox Raises error for non-Drush command with no placeholders.
    */
   public function testNonDrushWithNoPlaceholders(): void {
-    $process = Process::fromShellCommandline('drall exec -P foo', static::PATH_DRUPAL);
+    $process = Process::fromShellCommandline('drall exec -P -- foo', static::PATH_DRUPAL);
     $process->run();
     $this->assertOutputEquals(
       '[error] The command contains no placeholders. Please run it directly without Drall.' . PHP_EOL,
@@ -158,7 +158,7 @@ public function testDrushWithUriPlaceholder(): void {
    */
   public function testDrushWithSitePlaceholder(): void {
     $process = Process::fromShellCommandline(
-      'drall exec -P ./vendor/bin/drush -- @@site.local core:status --field=site',
+      'drall exec -P -- ./vendor/bin/drush @@site.local core:status --field=site',
       static::PATH_DRUPAL,
     );
     $process->run();
@@ -206,7 +206,7 @@ public function testDrushWithNoPlaceholders(): void {
    */
   public function testMultipleDrushWithNoPlaceholders(): void {
     $process = Process::fromShellCommandline(
-      'drall exec -P "./vendor/bin/drush st --fields=site; ./vendor/bin/drush st --fields=uri"',
+      'drall exec -P -- "./vendor/bin/drush st --fields=site; ./vendor/bin/drush st --fields=uri"',
     static::PATH_DRUPAL,
     );
     $process->run();
@@ -235,7 +235,7 @@ public function testMultipleDrushWithNoPlaceholders(): void {
    */
   public function testDrushInPath(): void {
     $process = Process::fromShellCommandline(
-      'drall exec -P ls ./vendor/drush/src',
+      'drall exec -P -- ls ./vendor/drush/src',
       static::PATH_DRUPAL,
     );
     $process->run();
@@ -253,7 +253,7 @@ public function testDrushInPath(): void {
    */
   public function testDrushCapitalized(): void {
     $process = Process::fromShellCommandline(
-      'drall exec -P "echo \"Drush status\" && ./vendor/bin/drush st --fields=site"',
+      'drall exec -P -- "echo \"Drush status\" && ./vendor/bin/drush st --fields=site"',
       static::PATH_DRUPAL,
     );
     $process->run();
@@ -282,7 +282,7 @@ public function testDrushCapitalized(): void {
    */
   public function testWithMixedPlaceholders(): void {
     $process = Process::fromShellCommandline(
-      'drall exec -P "./vendor/bin/drush --uri=@@dir st && ./vendor/bin/drush @@site.local st"',
+      'drall exec -P -- "./vendor/bin/drush --uri=@@dir st && ./vendor/bin/drush @@site.local st"',
       static::PATH_DRUPAL,
     );
     $process->run();
@@ -297,7 +297,7 @@ public function testWithMixedPlaceholders(): void {
    */
   public function testWithDirPlaceholder(): void {
     $process = Process::fromShellCommandline(
-      'drall exec -P ls web/sites/@@dir/settings.php',
+      'drall exec -P -- ls web/sites/@@dir/settings.php',
     static::PATH_DRUPAL,
     );
     $process->run();