diff --git a/tests/trie/1.0/types.hal b/tests/trie/1.0/types.hal
index 28c502bd71..c62690947a 100644
--- a/tests/trie/1.0/types.hal
+++ b/tests/trie/1.0/types.hal
@@ -16,16 +16,16 @@
 
 package android.hardware.tests.trie@1.0;
 
+struct TrieEdge {
+    int8_t character;
+    TrieNode node; // Requires reordering.
+};
+
 struct TrieNode {
     vec<TrieEdge> next;
     bool isTerminal;
 };
 
-struct TrieEdge {
-    int8_t character;
-    TrieNode node;
-};
-
 // Some forward reference tests.
 
 struct A {
@@ -41,11 +41,11 @@ struct S {
     refS f;
 };
 
+enum E2 : E1 {
+    ACCEPT,
+};
+
 enum E1 : int32_t {
     OK = E2:ACCEPT + ANOTHER,
     ANOTHER = 100,
 };
-
-enum E2 : E1 {
-    ACCEPT,
-};