diff --git a/distro.py b/distro.py
index 0746e76..0bd5fa1 100755
--- a/distro.py
+++ b/distro.py
@@ -94,6 +94,7 @@
     _OS_RELEASE_BASENAME,
     'system-release',
     'plesk-release',
+    'iredmail-release',
 )