diff --git a/os_list.txt b/os_list.txt
index efc9911e9..f23ef14a8 100644
--- a/os_list.txt
+++ b/os_list.txt
@@ -79,7 +79,7 @@ Wind River Linux		2.0	redhat-linux	16.0	`cat /etc/wrs-release 2>/dev/null` =~ /W
 Amazon Linux			$1	redhat-linux	20.0	`cat /etc/system-release 2>/dev/null` =~ /Amazon\s+Linux.*\s(201[1-9])/
 
 # Amazon Linux (2, approximately based on CentOS 7)
-Amazon Linux			$1	redhat-linux	15.0	`cat /etc/system-release 2>/dev/null` =~ /Amazon\s+Linux\s+2\n/
+Amazon Linux			$1	redhat-linux	15.0	`cat /etc/system-release 2>/dev/null` =~ /Amazon\s+Linux\s+(2)\n/
 
 # Free Redhat Linux and Fedora
 Redhat Linux			$1	redhat-linux	$1	`cat /etc/redhat-release 2>/dev/null` =~ /red.*hat.*release\s+(\S+)/i && `cat /etc/redhat-release 2>/dev/null` !~ /[eE]nterprise|AS|ES|WS|[aA]dvanced/