diff --git a/src/Composer/Compiler.php b/src/Composer/Compiler.php
index <HASH>..<HASH> 100644
--- a/src/Composer/Compiler.php
+++ b/src/Composer/Compiler.php
@@ -118,7 +118,7 @@ class Compiler
         $finder = new Finder();
         $finder->files()
             ->ignoreVCS(true)
-            ->notPath('/\/(composer\.(json|lock)|[A-Z]+\.md|\.gitignore|appveyor.yml|phpunit\.xml\.dist|phpstan\.neon\.dist|phpstan-config\.neon|phpstan-baseline\.neon)$/')
+            ->notPath('/\/(composer\.(json|lock)|[A-Z]+\.md(?:own)?|\.gitignore|appveyor.yml|phpunit\.xml\.dist|phpstan\.neon\.dist|phpstan-config\.neon|phpstan-baseline\.neon)$/')
             ->notPath('/bin\/(jsonlint|validate-json|simple-phpunit|phpstan|phpstan\.phar)(\.bat)?$/')
             ->notPath('justinrainbow/json-schema/demo/')
             ->notPath('justinrainbow/json-schema/dist/')
Fix handling of .mdown files in phar compiler