diff --git a/lib/jhipsteruml.js b/lib/jhipsteruml.js
index fceb679..4cd0686 100644
--- a/lib/jhipsteruml.js
+++ b/lib/jhipsteruml.js
@@ -112,7 +112,7 @@ async function main() {
 	  });
 	}
 	
-	exportToJSON(entities, values(entityIdsByName), parsedData, entityNamesToGenerate);
+	exportToJSON(entities, Object.values(entityIdsByName), parsedData, entityNamesToGenerate);
 	EntityGenerator.generateEntities(Object.keys(entities), parsedData.classes, entityNamesToGenerate, options);
 	
 	function initParserFactoryArgs() {
@@ -152,15 +152,5 @@ async function main() {
 	  logger.info(`The file '${fileName}' has been written.`);
 	}
 
-  function values(object) {
-    if (object == null) {
-      throw new Error('The passed object must not be nil.');
-    }
-    const values = [];
-    for (let i = 0, keys = Object.keys(object); i < keys.length; i++) {
-      values.push(object[keys[i]]);
-    }
-    return values;
-  }
 }
 main()