diff --git a/lib/exampletask/GwExampleTask.cpp b/lib/exampletask/GwExampleTask.cpp
index 9b4cbcd..821dd57 100644
--- a/lib/exampletask/GwExampleTask.cpp
+++ b/lib/exampletask/GwExampleTask.cpp
@@ -156,11 +156,11 @@ class ExampleWebData{
         vSemaphoreDelete(lock);
     }
     void set(int v){
-        GWSYNCHRONIZED(&lock);
+        GWSYNCHRONIZED(lock);
         data=v;
     }
     int get(){
-        GWSYNCHRONIZED(&lock);
+        GWSYNCHRONIZED(lock);
         return data;
     }
 };
diff --git a/lib/socketserver/GwTcpClient.cpp b/lib/socketserver/GwTcpClient.cpp
index e5f914b..2792300 100644
--- a/lib/socketserver/GwTcpClient.cpp
+++ b/lib/socketserver/GwTcpClient.cpp
@@ -246,7 +246,7 @@ void GwTcpClient::resolveHost(String host)
 {
     LOG_DEBUG(GwLog::LOG,"start resolving %s",host.c_str());
     {
-        GWSYNCHRONIZED(&locker);
+        GWSYNCHRONIZED(locker);
         resolvedAddress.resolved = false;
     }
     state = C_RESOLVING;
@@ -283,12 +283,12 @@ void GwTcpClient::resolveHost(String host)
 void GwTcpClient::setResolved(IPAddress addr, bool valid){
     LOG_DEBUG(GwLog::LOG,"setResolved %s, valid=%s",
         addr.toString().c_str(),(valid?"true":"false"));
-    GWSYNCHRONIZED(&locker);
+    GWSYNCHRONIZED(locker);
     resolvedAddress.address=addr;
     resolvedAddress.resolved=valid;
     state=C_RESOLVED;
 }
 GwTcpClient::ResolvedAddress GwTcpClient::getResolved(){
-    GWSYNCHRONIZED(&locker);
+    GWSYNCHRONIZED(locker);
     return resolvedAddress;
 }
\ No newline at end of file
diff --git a/lib/usercode/GwUserCode.h b/lib/usercode/GwUserCode.h
index 94e745d..5007d3e 100644
--- a/lib/usercode/GwUserCode.h
+++ b/lib/usercode/GwUserCode.h
@@ -38,13 +38,14 @@ class TaskInterfacesStorage;
 class GwUserCode{
     GwLog *logger;
     GwApiInternal *api;
-    SemaphoreHandle_t *mainLock;
+    SemaphoreHandle_t mainLock=nullptr;
     TaskInterfacesStorage *taskData;
     void startAddOnTask(GwApiInternal *api,GwUserTask *task,int sourceId,String name);
     public:
         ~GwUserCode();
         typedef std::map<String,String> Capabilities;
-        GwUserCode(GwApiInternal *api, SemaphoreHandle_t *mainLock);
+        GwUserCode(GwApiInternal *api);
+        void begin(SemaphoreHandle_t mainLock){this->mainLock=mainLock;}
         void startUserTasks(int baseId);
         void startInitTasks(int baseId);
         void startAddonTask(String name,TaskFunction_t task, int id);
diff --git a/src/main.cpp b/src/main.cpp
index ae8f3d5..e781ada 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -235,17 +235,17 @@ void SendNMEA0183Message(const tNMEA0183Msg &NMEA0183Msg, int sourceId,bool conv
 class CalibrationValues {
   using Map=std::map<String,double>;
   Map values;
-  SemaphoreHandle_t lock;
+  SemaphoreHandle_t lock=nullptr;
   public:
     CalibrationValues(){
       lock=xSemaphoreCreateMutex();
     }
     void set(const String &name,double value){
-      GWSYNCHRONIZED(&lock);
+      GWSYNCHRONIZED(lock);
       values[name]=value;
     }
     bool get(const String &name, double &value){
-      GWSYNCHRONIZED(&lock);
+      GWSYNCHRONIZED(lock);
       auto it=values.find(name);
       if (it==values.end()) return false;
       value=it->second;
@@ -373,7 +373,7 @@ bool delayedRestart(){
   },"reset",2000,&logger,0,NULL) == pdPASS;
 }
 ApiImpl *apiImpl=new ApiImpl(MIN_USER_TASK);
-GwUserCode userCodeHandler(apiImpl,&mainLock);
+GwUserCode userCodeHandler(apiImpl);
 
 #define JSON_OK "{\"status\":\"OK\"}"
 #define JSON_INVALID_PASS F("{\"status\":\"invalid password\"}")
@@ -788,6 +788,7 @@ void setup() {
   logger.setWriter(new DefaultLogWriter());
 #endif
   boatData.begin();
+  userCodeHandler.begin(mainLock);
   userCodeHandler.startInitTasks(MIN_USER_TASK);
   channels.preinit();
   config.stopChanges();
@@ -937,7 +938,7 @@ void setup() {
   logger.logDebug(GwLog::LOG,"starting addon tasks");
   logger.flush();
   {
-    GWSYNCHRONIZED(&mainLock);
+    GWSYNCHRONIZED(mainLock);
     userCodeHandler.startUserTasks(MIN_USER_TASK);
   }
   timers.addAction(HEAP_REPORT_TIME,[](){
@@ -967,7 +968,7 @@ void handleSendAndRead(bool handleRead){
 void loopRun() {
   //logger.logDebug(GwLog::DEBUG,"main loop start");
   monitor.reset();
-  GWSYNCHRONIZED(&mainLock);
+  GWSYNCHRONIZED(mainLock);
   logger.flush();
   monitor.setTime(1);
   gwWifi.loop();