diff --git a/phar.php b/phar.php
index 426df56..3febca1 100644
--- a/phar.php
+++ b/phar.php
@@ -210,7 +210,7 @@ class Installer
         }
         \define('HAD_MADELINE_PHAR', !!$local_release);
 
-        if ($local_release !== null) {
+        if ($local_release !== null && \file_exists("madeline-$local_release.phar")) {
             return self::load($local_release);
         }
 
diff --git a/release81 b/release81
index c0e5b7c..8f8aad7 100644
--- a/release81
+++ b/release81
@@ -1 +1 @@
-11492ca3216f153502d8d16e5ef6d2c80156ed2c-81
\ No newline at end of file
+4c5292ff605bc4c105886d9ef7a7e3772a42af9a-81
\ No newline at end of file