diff --git a/src/JsonApi/Specification.TypeGuards.ts b/src/JsonApi/Specification.TypeGuards.ts
index eedfdf0..a089b82 100644
--- a/src/JsonApi/Specification.TypeGuards.ts
+++ b/src/JsonApi/Specification.TypeGuards.ts
@@ -367,7 +367,9 @@ export function isResourceObject(obj: any, _argumentName?: string): obj is Resou
         (typeof obj.relationships === "undefined" ||
             isRelationshipsObject(obj.relationships) as boolean) &&
         (typeof obj.links === "undefined" ||
-            isLinkObject(obj.links) as boolean)
+            isLinkObject(obj.links) as boolean) &&
+        (typeof obj.meta === "undefined" ||
+            isMetaObject(obj.meta) as boolean)
     )
 }
 
diff --git a/src/JsonApi/Specification.ts b/src/JsonApi/Specification.ts
index cc79b12..4a075ba 100644
--- a/src/JsonApi/Specification.ts
+++ b/src/JsonApi/Specification.ts
@@ -259,6 +259,7 @@ export type ResourceObject = {
   attributes?: AttributesObject;
   relationships?: RelationshipsObject;
   links?: LinkObject;
+  meta?: MetaObject;
 };
 
 /**