diff --git a/src/data/setbundle/code.rs b/src/data/setbundle/code.rs
index 5a78438..7e6e628 100644
--- a/src/data/setbundle/code.rs
+++ b/src/data/setbundle/code.rs
@@ -80,7 +80,7 @@ impl CardCode {
 
     /// Find, in a [`CardIndex`], the [`Card`] this code belongs to.
     pub fn to_card<'c>(&self, cards: &'c CardIndex) -> Option<&'c Card> {
-        cards.get(&self)
+        cards.get(self)
     }
 }