fix syntax

1 files changed, 1 insertions, 1 deletions

diff --git a/scd4x b/scd4x
index 5bef804..f887285 100755
--- a/scd4x
+++ b/scd4x
@@ -31,7 +31,7 @@ my $values;
 my $pvalues;
 for (;;) {
 	$values = read_json_file($file);
-	my $serial = $values->{'serial'}
+	my $serial = $values->{'serial'};
 	for my $key ('co2', 'temperature', 'humidity') {
 		next if defined($pvalues->{$key}) and $pvalues->{$key} eq $values->{$key};
 		my $topic = "sensors/" . $key . "/scd4x/" . $serial;