diff --git a/label-item.typ b/label-item.typ
index 1e2be26..05d6219 100644
--- a/label-item.typ
+++ b/label-item.typ
@@ -56,13 +56,13 @@
 #import "@preview/cades:0.3.0": qr-code
 
 #let item(itemslug) = [
-  #qr-code("https://wiki.hamburg.ccc.de/item:#itemslug")
+  #qr-code("https://wiki.hamburg.ccc.de/item:" + itemslug)
   #text(8pt)[wiki.hamburg.ccc.de/item:#itemslug]
 ]
 
 == Prusa i3 MK3S
 
-#item[prusa-i3]
+#item("prusa-i3")
 
 === Usage
 //Introduction required