diff --git a/qr-labels.py b/qr-labels.py
index 140c149..9e61703 100644
--- a/qr-labels.py
+++ b/qr-labels.py
@@ -62,7 +62,7 @@ def serveCode(code):
     	box_size=8,
     	border=3,
 	)
-	qr.add_data('systemURL + code')
+	qr.add_data(systemURL + code)
 	qr.make(fit=True)
 	img = qr.make_image(fill_color="black", back_color="white")
 	return serveImage(img)