diff --git a/htdocs/core/class/antivir.class.php b/htdocs/core/class/antivir.class.php
index a530da66e3d..aab69d452dc 100644
--- a/htdocs/core/class/antivir.class.php
+++ b/htdocs/core/class/antivir.class.php
@@ -66,7 +66,7 @@ class AntiVir
 
 		if (preg_match('/\.virus$/i', $file))
 		{
-		    $this->errors='File has an extension saying file is a virus';
+		    $this->errors[] = 'File has an extension saying file is a virus';
 		    return -97;
 		}