diff --git a/bad_user_agents.regex.txt b/bad_user_agents.regex.txt
index cb5d4e4..376271e 100644
--- a/bad_user_agents.regex.txt
+++ b/bad_user_agents.regex.txt
@@ -1,4 +1,4 @@
-\b-\b
+^-$
 \bAmazonbot\b
 \bbytedance\b
 \bBytespider\b