diff --git a/Descriptor/ApplicationDescription.php b/Descriptor/ApplicationDescription.php
index 5f32173ae..2158339ec 100644
--- a/Descriptor/ApplicationDescription.php
+++ b/Descriptor/ApplicationDescription.php
@@ -127,7 +127,7 @@ private function sortCommands(array $commands): array
         }
 
         if ($namespacedCommands) {
-            ksort($namespacedCommands);
+            ksort($namespacedCommands, \SORT_STRING);
             foreach ($namespacedCommands as $key => $commandsSet) {
                 ksort($commandsSet);
                 $sortedCommands[$key] = $commandsSet;
diff --git a/Tests/Descriptor/ApplicationDescriptionTest.php b/Tests/Descriptor/ApplicationDescriptionTest.php
index b3ba9d848..da64dca00 100644
--- a/Tests/Descriptor/ApplicationDescriptionTest.php
+++ b/Tests/Descriptor/ApplicationDescriptionTest.php
@@ -36,7 +36,7 @@ public function getNamespacesProvider()
         return [
             [['_global'], ['foobar']],
             [['a', 'b'], ['b:foo', 'a:foo', 'b:bar']],
-            [['_global', 'b', 'z', 22, 33], ['z:foo', '1', '33:foo', 'b:foo', '22:foo:bar']],
+            [['_global', 22, 33, 'b', 'z'], ['z:foo', '1', '33:foo', 'b:foo', '22:foo:bar']],
         ];
     }
 }