From 46abf539bff23bd1eb6eaa698b7c23ddfeb1d6d9 Mon Sep 17 00:00:00 2001
From: Richard Feldman <oss@rtfeldman.com>
Date: Fri, 22 Jul 2022 09:30:54 -0400
Subject: [PATCH] Drop unnecessary parens

---
 crates/compiler/builtins/roc/List.roc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/compiler/builtins/roc/List.roc b/crates/compiler/builtins/roc/List.roc
index 03d548eb2d..a5fc2dbd64 100644
--- a/crates/compiler/builtins/roc/List.roc
+++ b/crates/compiler/builtins/roc/List.roc
@@ -770,7 +770,7 @@ maxHelp = \list, initial ->
 ## You may know a similar function named `concatMap` in other languages.
 joinMap : List a, (a -> List b) -> List b
 joinMap = \list, mapper ->
-    List.walk list [] (\state, elem -> List.concat state (mapper elem))
+    List.walk list [] \state, elem -> List.concat state (mapper elem)
 
 ## Returns the first element of the list satisfying a predicate function.
 ## If no satisfying element is found, an `Err NotFound` is returned.