diff --git a/_generator_lists/bad-user-agents.list b/_generator_lists/bad-user-agents.list
index 7111283f0..a7d5ed4c9 100755
--- a/_generator_lists/bad-user-agents.list
+++ b/_generator_lists/bad-user-agents.list
@@ -1,3 +1,4 @@
+probe-image-size
 01h4x.com
 360Spider
 404checker