diff --git a/ast/spec.md b/ast/spec.md
index c004ac452c..c03bfad24f 100644
--- a/ast/spec.md
+++ b/ast/spec.md
@@ -669,7 +669,6 @@ An object expression.
 interface ObjectMember <: Node {
   key: Expression;
   computed: boolean;
-  value: Expression;
   decorators: [ Decorator ];
 }
 ```
@@ -680,6 +679,7 @@ interface ObjectMember <: Node {
 interface ObjectProperty <: ObjectMember {
   type: "ObjectProperty";
   shorthand: boolean;
+  value: Expression;
 }
 ```