diff --git a/bots.d/blacklist-user-agents.conf b/bots.d/blacklist-user-agents.conf
index 8d2f63c99..7150a8a2e 100644
--- a/bots.d/blacklist-user-agents.conf
+++ b/bots.d/blacklist-user-agents.conf
@@ -61,5 +61,5 @@
 # Here are some default things I block on my own server, these appear in various types of injection attacks
 # You can disable them if you have problems or don't agree by switching thir value to 0
 
-	"~x22" 					3;
+	"~*(?:\b)x22(?:\b|)" 	3;
     "~*({|})"				3;