diff --git a/oppaiBot.py b/oppaiBot.py
index cbf0944..3266b5d 100755
--- a/oppaiBot.py
+++ b/oppaiBot.py
@@ -54,7 +54,7 @@ class OppaiBot(irc.IRCClient):
 		or users alike.
 		"""
 		# More advanced logic is left as an exercise to the reader.
-		black_in_msg = [tag in message for tag in self.blacklist]
+		black_in_msg = [tag in message for tag in self.blacklist if tag]
 		if any(black_in_msg):
 			return