diff --git a/README.md b/README.md
index 742e817..f29ed6f 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ Python modules: `requests, twisted`
 `auth_msg` - The message to send to the `tracker_bot` to authenticate with and access the announce channel. It's up to you figure this out.  
 `watch_dir` - The directory to save torrents to.  
 `cookies_txt` - The path to where your session cookie(s) are stored. Should be in Netscape format.  
-`tags` - Comma-delineated list of tags to look for in each announce message. The script is just performing simple string comparisons on the entire message, so the 'tag' can be any substring appearing in the announce message. Tag inside of brackets are AND'd together, tag groups are then OR'd together. In the example below, announce messages with ['Manga' AND 'English' AND 'Archived'] OR 'Dual Language' OR 'Softsubs' will be matched.  
+`tags` - Comma-delineated list of tags to look for in each announce message. The script is just performing simple string comparisons on the entire message, so the 'tag' can be any substring appearing in the announce message. Tag inside of brackets are AND'd together, tag groups are then OR'd together. Tags starting with ! are treated as NOT [tag]. In the example below, announce messages with ['English' AND NOT 'Manga'] OR ['Manga' AND 'English' AND 'Archived'] OR 'Dual Language' OR 'Softsubs' will be matched.  
 
 ### Example config.cfg
 ```
@@ -31,7 +31,7 @@ tracker_bot = Udon
 auth_msg = BOT #oppaitime-announce iou1name SpaghettiIsAFaggot
 watch_dir = /home/iou1name/torrent/oppaitime/Watch/
 cookies_txt = cookies.txt
-tags = [Manga,English,Archived],[Dual Language],[Softsubs]
+tags = [English,!Manga],[Manga,English,Archived],[Dual Language],[Softsubs]
 
 [redacted]
 server = irc.scratch-network.net
@@ -42,5 +42,5 @@ tracker_bot = Drone
 auth_msg = enter #red-announce iou1name TheyllAlwaysBePTHToMe
 watch_dir = /home/iou1name/torrent/passtheheadphones/Watch/
 cookies_txt = cookies.txt
-tags = [rock],[metal]
+tags = [rock]
 ```
diff --git a/oppaiBot.py b/oppaiBot.py
index 51347d0..fda67a7 100755
--- a/oppaiBot.py
+++ b/oppaiBot.py
@@ -54,7 +54,15 @@ class OppaiBot(irc.IRCClient):
 		# More advanced logic is left as an exercise to the reader.
 		tags_in_msg = []
 		for tag_group in self.tags:
-			tags_in_msg.append(all([tag in msg for tag in tag_group]))
+			#tags_in_msg.append(all([tag in message for tag in tag_group]))
+			tags_in_group = []
+			for tag in tag_group:
+				if tag.startswith("!"):
+					tags_in_group.append(tag[1:] not in message)
+				else:
+					tags_in_group.append(tag in message)
+			tags_in_msg.append(all(tags_in_group))
+
 		if any(tags_in_msg):
 			url = re.findall(r"(http.+?) ", message)[1]
 			self.save_torrent(url, self.watch_dir)