diff --git a/YouTubeMusic/OAuth2.pm b/YouTubeMusic/OAuth2.pm
index 74cbdfa..97dc209 100644
--- a/YouTubeMusic/OAuth2.pm
+++ b/YouTubeMusic/OAuth2.pm
@@ -8,8 +8,8 @@ use Slim::Utils::Strings qw(string cstring);
 use JSON::XS::VersionOneAndTwo;
 use Data::Dumper;
 
-use constant CLIENT_ID = "861556708454-d6dlm3lh05idd8npek18k6be8ba3oc68.apps.googleusercontent.com";
-use constant CLIENT_SECRET = "SboVhoG9s0rNafixCSGGKXAT";
+use constant CLIENT_ID => "861556708454-d6dlm3lh05idd8npek18k6be8ba3oc68.apps.googleusercontent.com";
+use constant CLIENT_SECRET => "SboVhoG9s0rNafixCSGGKXAT";
 
 my $log   = logger('plugin.youtubemusic');
 my $cache = Slim::Utils::Cache->new();