diff --git a/src/boot/boot.janet b/src/boot/boot.janet
index a31785bb..636f2b24 100644
--- a/src/boot/boot.janet
+++ b/src/boot/boot.janet
@@ -1141,7 +1141,10 @@
     :table (walk-dict f form)
     :struct (table/to-struct (walk-dict f form))
     :array (walk-ind f form)
-    :tuple (tuple/slice (walk-ind f form))
+    :tuple (let [x (walk-ind f form)]
+             (if (= :parens (tuple/type form))
+               (tuple/slice x)
+               (tuple/brackets ;x)))
     form))
 
 (undef walk-ind)
diff --git a/test/suite0010.janet b/test/suite0010.janet
index 62ef3bab..feb44510 100644
--- a/test/suite0010.janet
+++ b/test/suite0010.janet
@@ -61,4 +61,8 @@
 (assert-no-error "import macro 1" (macex '(import a :as b :fresh maybe)))
 (assert (deep= ~(,import* "a" :as "b" :fresh maybe) (macex '(import a :as b :fresh maybe))) "import macro 2")
 
+# #477 walk preserving bracket type
+(assert (= :brackets (tuple/type (postwalk identity '[]))) "walk square brackets 1")
+(assert (= :brackets (tuple/type (walk identity '[]))) "walk square brackets 2")
+
 (end-suite)