diff --git a/src/scanners/scanner.py b/src/scanners/scanner.py
index 53d6970..453fbd3 100644
--- a/src/scanners/scanner.py
+++ b/src/scanners/scanner.py
@@ -44,12 +44,13 @@ class Scanner(ABC):
             return
 
         # check args validity
-        str_channel_mentions = [channel.id for channel in message.channel_mentions]
-        str_mentions = [member.id for member in message.mentions]
+        str_channel_mentions = [str(channel.id) for channel in message.channel_mentions]
+        str_mentions = [str(member.id) for member in message.mentions]
+        print(str_mentions)
         for i, arg in enumerate(args[1:]):
             if re.match(r"^<@!?\d+>$", arg):
                 arg = arg[3:-1] if "!" in arg else arg[2:-1]
-            if re.match(r"^<#!?\d+>$", arg):
+            elif re.match(r"^<#!?\d+>$", arg):
                 arg = arg[3:-1] if "!" in arg else arg[2:-1]
             if (
                 arg not in self.valid_args + ["me", "here", "fast"]