diff --git a/web/nfc-theme/static/cgi/track.cgi b/web/nfc-theme/static/cgi/track.cgi
index 42de89c..787b375 100644
--- a/web/nfc-theme/static/cgi/track.cgi
+++ b/web/nfc-theme/static/cgi/track.cgi
@@ -1,5 +1,5 @@
 #!/usr/bin/python3
-print "Content-type:text/html\r\n\r\n"
+print("Content-type:text/html\r\n\r\n")
 import cgi
 import json
 import os