diff --git a/client/simulator_base.cpp b/client/simulator_base.cpp
index f19f397..46d2147 100644
--- a/client/simulator_base.cpp
+++ b/client/simulator_base.cpp
@@ -239,7 +239,7 @@ void Simulator_base::process_ui_label(json &ui_item, QWidget *widget)
 
 void Simulator_base::process_ui_slider(json &ui_item, QWidget *widget)
 {
-    QLabel *label = id_to_label(ui_item.at("id"));
+    QLabel *label = id_to_label(id_to_ui(ui_item.at("id")));
 
     auto slider = qobject_cast<QwtSlider *>(widget);
     if (slider == nullptr)
@@ -278,7 +278,7 @@ void Simulator_base::process_ui_slider(json &ui_item, QWidget *widget)
 
 void Simulator_base::process_ui_dial(json &ui_item, QWidget *widget)
 {
-    QLabel *label = id_to_label(ui_item.at("id"));
+    QLabel *label = id_to_label(id_to_ui(ui_item.at("id")));
 
     auto dial = qobject_cast<QwtDial *>(widget);
     if (dial == nullptr)
@@ -310,7 +310,7 @@ void Simulator_base::process_ui_dial(json &ui_item, QWidget *widget)
 
 void Simulator_base::process_ui_thermo(json &ui_item, QWidget *widget)
 {
-    QLabel *label = id_to_label(ui_item.at("id"));
+    QLabel *label = id_to_label(id_to_ui(ui_item.at("id")));
 
     auto thermo = qobject_cast<QwtThermo *>(widget);
     if (thermo == nullptr)
diff --git a/client/simulator_base.hpp b/client/simulator_base.hpp
index 368ceb5..f34ac0f 100644
--- a/client/simulator_base.hpp
+++ b/client/simulator_base.hpp
@@ -26,8 +26,9 @@ class Simulator_base : public QMainWindow
     void sim_update(void);
     QString name() const;
     QWidget *id_to_ui(size_t id);
-    virtual QLabel *id_to_label(size_t name)
+    virtual QLabel *id_to_label(QWidget *widget)
     {
+        Q_UNUSED(widget);
         return nullptr;
     }
 
diff --git a/client/simulators/test.cpp b/client/simulators/test.cpp
index dbafb55..e2c185d 100644
--- a/client/simulators/test.cpp
+++ b/client/simulators/test.cpp
@@ -31,9 +31,8 @@ Test_Sim::~Test_Sim()
     delete ui;
 }
 
-QLabel *Test_Sim::id_to_label(size_t id)
+QLabel *Test_Sim::id_to_label(QWidget *widget)
 {
-    QWidget *widget = id_to_ui(id);
     if (widget == ui->slider)
         return ui->slider_label;
     if (widget == ui->thermo)
diff --git a/client/simulators/test.hpp b/client/simulators/test.hpp
index 5d3d6cb..40ebbb4 100644
--- a/client/simulators/test.hpp
+++ b/client/simulators/test.hpp
@@ -16,7 +16,7 @@ class Test_Sim : public Simulator_base
     explicit Test_Sim(Web_socket_wrapper *web_socket = nullptr, QWidget *parent = nullptr);
     ~Test_Sim();
 
-    QLabel *id_to_label(size_t name) override;
+    QLabel *id_to_label(QWidget *widget) override;
 
   private:
     Ui::Test_Sim *ui;