diff --git a/prelude.ld b/prelude.ld
index 211726f..64748c1 100644
--- a/prelude.ld
+++ b/prelude.ld
@@ -388,7 +388,7 @@ fn downcase {
 
 fn chars {
 	"Takes a string and returns its characters as a list. Works only for strings with only ascii characters. Panics on any non-ascii characters."
-	(str as :string) -> match base :chars (str) {
+	(str as :string) -> match base :chars (str) with {
 		(:ok, chrs) -> chrs
 		(:err, msg) -> panic! msg
 	}