diff --git a/telegram.pl b/telegram.pl
index 4f5d4dc..30e4c69 100644
--- a/telegram.pl
+++ b/telegram.pl
@@ -74,7 +74,11 @@ ($;$)
 
 		if ($chan =~ m/^(#.+),(.+)$/) {
 			$chan = $1;
-			$chanmod{$chan} = $2;
+			my $mod = $2;
+			if (($mod ne 'all') && ($mod =~ /\D/)) {
+				$mod = 0;
+			}
+			$chanmod{$chan} = $mod;
 		}
 		my $query = ($chan !~ m/^#/);