diff --git a/src/Composer/Command/PackageDiscoveryTrait.php b/src/Composer/Command/PackageDiscoveryTrait.php
index 1ad7e50c5..99fb0f39b 100644
--- a/src/Composer/Command/PackageDiscoveryTrait.php
+++ b/src/Composer/Command/PackageDiscoveryTrait.php
@@ -271,7 +271,11 @@ trait PackageDiscoveryTrait
     private function findBestVersionAndNameForPackage(InputInterface $input, string $name, ?PlatformRepository $platformRepo = null, string $preferredStability = 'stable', ?string $requiredVersion = null, ?string $minimumStability = null, bool $fixed = false): array
     {
         // handle ignore-platform-reqs flag if present
-        $platformRequirementFilter = $this->getPlatformRequirementFilter($input);
+        if ($input->hasOption('ignore-platform-reqs') && $input->hasOption('ignore-platform-req')) {
+            $platformRequirementFilter = $this->getPlatformRequirementFilter($input);
+        } else {
+            $platformRequirementFilter = PlatformRequirementFilterFactory::ignoreNothing();
+        }
 
         // find the latest version allowed in this repo set
         $repoSet = $this->getRepositorySet($input, $minimumStability);