diff --git a/distro.py b/distro.py
index 0287eb8..165b8e1 100755
--- a/distro.py
+++ b/distro.py
@@ -90,7 +90,8 @@
     'lsb-release',
     'oem-release',
     _OS_RELEASE_BASENAME,
-    'system-release'
+    'system-release',
+    'plesk-release',
 )