diff --git a/FileLocator.php b/FileLocator.php
index e221af09b..3a5064edc 100644
--- a/FileLocator.php
+++ b/FileLocator.php
@@ -87,6 +87,7 @@ private function isAbsolutePath(string $file): bool
                 && ('\\' === $file[2] || '/' === $file[2])
             )
             || parse_url($file, \PHP_URL_SCHEME)
+            || str_starts_with($file, 'phar:///') // "parse_url()" doesn't handle absolute phar path, despite being valid
         ) {
             return true;
         }
diff --git a/Tests/FileLocatorTest.php b/Tests/FileLocatorTest.php
index d042bff7d..beb005a35 100644
--- a/Tests/FileLocatorTest.php
+++ b/Tests/FileLocatorTest.php
@@ -38,6 +38,7 @@ public static function getIsAbsolutePathTests(): array
             ['\\server\\foo.xml'],
             ['https://server/foo.xml'],
             ['phar://server/foo.xml'],
+            ['phar:///server/foo.xml'],
         ];
     }