diff --git a/package.json b/package.json
index 3e2079c..a86accd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
    "name": "nodename-core",
-   "version": "0.3.0",
+   "version": "0.3.1",
    "main": "lib/index.js",
    "types": "lib/index.d.ts",
    "author": "Fabian Stamm <dev@fabianstamm.de>",
diff --git a/src/benchmark.ts b/src/benchmark.ts
index 5573218..5014322 100644
--- a/src/benchmark.ts
+++ b/src/benchmark.ts
@@ -50,7 +50,7 @@ console.timeEnd("complete 10 answers")
 class TestMonitoringPlugin implements MonitoringPlugin {
    constructor() { }
    async init(core) { }
-   Priority = 0
+   priority = 0
    onRequest(domain, hostname, type) { }
 }
 
@@ -81,14 +81,14 @@ class ARR extends RecourceRecord {
 
 class TestQuestionPlugin implements QuestionPlugin {
    private Core: DnsCore
-   QuestionTypes = [RecordTypes.A]
-   Priority = 0
+   question_types = [RecordTypes.A]
+   priority = 0
    async init(core) {
       this.Core = core;
    }
 
    async handleQuestion(question: Question, request: AnswerHandler, next: () => void) {
-      assert(this.QuestionTypes.find(e => e === <any>question.QTYPE), "Handler was called with not supported question type")
+      assert(this.question_types.find(e => e === <any>question.QTYPE), "Handler was called with not supported question type")
       let parts = question.QNAME.split(".")
       let domain = parts.splice(-2, 2).join(".")
       let hostname = parts.join(".");
@@ -100,7 +100,7 @@ class TestQuestionPlugin implements QuestionPlugin {
 
 class TestListenerPlugin implements ListenerPlugin {
    async init(core) { }
-   Priority = 0;
+   priority = 0;
    callback: (data: Buffer, sender: string, max_size?: number) => Promise<Buffer>;
    registerCallback(callback) {
       this.callback = callback;
@@ -120,9 +120,9 @@ class TestStoragePlugin implements StoragePlugin {
          this.re = record;
    }
 
-   Priority = 0
-   NoCache = false
-   RecordTypes = [RecordTypes.A]
+   priority = 0
+   no_cache = false
+   record_types = [RecordTypes.A]
    isResponsible(domain: string) {
       // console.log("Is responsible")
       return true
diff --git a/src/test.ts b/src/test.ts
index d7b12b1..2a85507 100644
--- a/src/test.ts
+++ b/src/test.ts
@@ -351,20 +351,20 @@ describe("DNS Core", function () {
 
       core.addListener({
          init: async (c) => { assert.exists(c, "Core not defined on Plugin init") },
-         Priority: 0,
+         priority: 0,
          registerCallback: () => { }
       })
 
       core.addMonitoring({
          init: async (c) => { assert.exists(c, "Core not defined on Plugin init") },
-         Priority: 0,
+         priority: 0,
          onRequest: () => { }
       })
 
       core.addQuestion({
          init: async (c) => { assert.exists(c, "Core not defined on Plugin init") },
-         QuestionTypes: [RecordTypes.A],
-         Priority: 0,
+         question_types: [RecordTypes.A],
+         priority: 0,
          handleQuestion: async () => { },
       })
 
@@ -373,9 +373,9 @@ describe("DNS Core", function () {
          getRecords: async () => undefined,
          init: async (c) => { assert.exists(c, "Core not defined on Plugin init") },
          isResponsible: () => true,
-         NoCache: false,
-         Priority: 0,
-         RecordTypes: [RecordTypes.A]
+         no_cache: false,
+         priority: 0,
+         record_types: [RecordTypes.A]
       })
 
       return core.start();
@@ -425,9 +425,9 @@ class TestStoragePlugin implements StoragePlugin {
          this.re = record;
    }
 
-   Priority = 0
-   NoCache = false
-   RecordTypes = [RecordTypes.A]
+   priority = 0
+   no_cache = false
+   record_types = [RecordTypes.A]
    isResponsible(domain: string) {
       // console.log("Is responsible")
       return true
@@ -450,7 +450,7 @@ class TestMonitoringPlugin implements MonitoringPlugin {
    constructor(private should: { domain: string, hostname: string, type: string }) { }
 
    async init(core) { assert.exists(core, "TestMonitoringPlugin init no core object") }
-   Priority = 0
+   priority = 0
    onRequest(domain, hostname, type) {
       assert.equal(this.should.domain, domain, "Domain value wrong")
       assert.equal(this.should.hostname, hostname, "Domain value wrong")
@@ -486,15 +486,15 @@ class ARR extends RecourceRecord {
 
 class TestQuestionPlugin implements QuestionPlugin {
    private Core: DnsCore
-   QuestionTypes = [RecordTypes.A]
-   Priority = 0
+   question_types = [RecordTypes.A]
+   priority = 0
    async init(core) {
       assert.exists(core, "TestQuestionPlugin init no core object")
       this.Core = core;
    }
 
    async handleQuestion(question: Question, request: AnswerHandler, next: () => void) {
-      assert(this.QuestionTypes.find(e => e === <any>question.QTYPE), "Handler was called with not supported questin type")
+      assert(this.question_types.find(e => e === <any>question.QTYPE), "Handler was called with not supported questin type")
       let parts = question.QNAME.split(".")
       let domain = parts.splice(-2, 2).join(".")
       let hostname = parts.join(".");
@@ -506,7 +506,7 @@ class TestQuestionPlugin implements QuestionPlugin {
 
 class TestListenerPlugin implements ListenerPlugin {
    async init(core) { assert.exists(core, "TestListenerPlugin init no core object") }
-   Priority = 0;
+   priority = 0;
    callback: (data: Buffer, sender: string, max_size?: number) => Promise<Buffer>;
    registerCallback(callback) {
       this.callback = callback;