diff --git a/src/jsonify/parse.ts b/src/jsonify/parse.ts
index 91c0fe0e527..0e2ae9b0922 100644
--- a/src/jsonify/parse.ts
+++ b/src/jsonify/parse.ts
@@ -33,6 +33,10 @@ function unpack(
 
   const current = arr[idx];
   if (typeof current === "number") {
+    if (idx !== 0) {
+      hydrated[idx] = current;
+      return;
+    }
     switch (current) {
       case UNDEFINED:
         hydrated[idx] = undefined;
diff --git a/src/jsonify/parse_test.ts b/src/jsonify/parse_test.ts
index 8e5a1b88df1..42b17f1cbf3 100644
--- a/src/jsonify/parse_test.ts
+++ b/src/jsonify/parse_test.ts
@@ -97,3 +97,7 @@ Deno.test("parse - circular references", () => {
 Deno.test("parse - object", () => {
   expect(parse('[{"foo":1},42]')).toEqual({ foo: 42 });
 });
+
+Deno.test("parse - object with number negative", () => {
+  expect(parse('[{"foo":1}, -1]')).toEqual({ foo: -1 });
+});