diff --git a/tests/compose/filters/mailu.env b/tests/compose/filters/mailu.env
index 25c7c133..e165fee2 100644
--- a/tests/compose/filters/mailu.env
+++ b/tests/compose/filters/mailu.env
@@ -60,7 +60,7 @@ WEBMAIL=none
 WEBDAV=none
 
 # Antivirus solution (value: clamav, none)
-#ANTIVIRUS=clamav
+ANTIVIRUS=clamav
 
 #Antispam solution
 ANTISPAM=none