diff --git a/GUI/Models/FitSuiteItem.cpp b/GUI/Models/FitSuiteItem.cpp
index 9702904bf8e37d7056d7f537b42250b380bf8ca8..f3adc8baded611fbaba418a01e970c83d37138c4 100644
--- a/GUI/Models/FitSuiteItem.cpp
+++ b/GUI/Models/FitSuiteItem.cpp
@@ -43,3 +43,18 @@ MinimizerContainerItem* FitSuiteItem::minimizerContainerItem()
 {
     return item<MinimizerContainerItem>(FitSuiteItem::T_MINIMIZER);
 }
+
+int FitSuiteItem::updateInterval() const
+{
+    return getItemValue(P_UPDATE_INTERVAL).toInt();
+}
+
+void FitSuiteItem::setUpdateInterval(const int interval)
+{
+    setItemValue(P_UPDATE_INTERVAL, interval);
+}
+
+bool FitSuiteItem::isUpdateIntervalPropertyName(const QString& name)
+{
+    return name == P_UPDATE_INTERVAL;
+}
diff --git a/GUI/Models/FitSuiteItem.h b/GUI/Models/FitSuiteItem.h
index 2a61751f98f99db60826d50bb0043b512052701a..5b3c8020dccb012c1fc08e7ba0db931e4de42916 100644
--- a/GUI/Models/FitSuiteItem.h
+++ b/GUI/Models/FitSuiteItem.h
@@ -21,9 +21,10 @@ class FitParameterContainerItem;
 class MinimizerContainerItem;
 
 class BA_CORE_API_ FitSuiteItem : public SessionItem {
+private:
+    static const QString P_UPDATE_INTERVAL;
 
 public:
-    static const QString P_UPDATE_INTERVAL;
     static const QString P_ITERATION_COUNT;
     static const QString P_CHI2;
     static const QString T_FIT_PARAMETERS_CONTAINER;
@@ -35,6 +36,10 @@ public:
 
     FitParameterContainerItem* fitParameterContainerItem();
     MinimizerContainerItem* minimizerContainerItem();
+
+    int updateInterval() const;
+    void setUpdateInterval(int interval);
+    static bool isUpdateIntervalPropertyName(const QString& name);
 };
 
 #endif // BORNAGAIN_GUI_MODELS_FITSUITEITEM_H
diff --git a/GUI/Views/FitWidgets/FitSessionController.cpp b/GUI/Views/FitWidgets/FitSessionController.cpp
index c0be73ea78a5c80f0fd8ba00fffb56605ce6935c..8fb6c1acf07f1c568c991066c4613538efadffdd 100644
--- a/GUI/Views/FitWidgets/FitSessionController.cpp
+++ b/GUI/Views/FitWidgets/FitSessionController.cpp
@@ -63,10 +63,8 @@ void FitSessionController::setItem(JobItem* item)
     // Propagates update interval from FitSuiteItem to fit observer.
     m_jobItem->fitSuiteItem()->mapper()->setOnPropertyChange(
         [this](const QString& name) {
-            if (name == FitSuiteItem::P_UPDATE_INTERVAL) {
-                m_observer->setInterval(m_jobItem->fitSuiteItem()
-                                            ->getItemValue(FitSuiteItem::P_UPDATE_INTERVAL)
-                                            .toInt());
+            if (FitSuiteItem::isUpdateIntervalPropertyName(name)) {
+                m_observer->setInterval(m_jobItem->fitSuiteItem()->updateInterval());
             }
         },
         this);
@@ -79,8 +77,7 @@ void FitSessionController::onStartFittingRequest()
 
     try {
         m_objectiveBuilder = std::make_unique<FitObjectiveBuilder>(m_jobItem);
-        m_observer->setInterval(
-            m_jobItem->fitSuiteItem()->getItemValue(FitSuiteItem::P_UPDATE_INTERVAL).toInt());
+        m_observer->setInterval(m_jobItem->fitSuiteItem()->updateInterval());
         m_objectiveBuilder->attachObserver(m_observer);
         m_observer->finishedPlotting();
         m_runFitManager->runFitting(m_objectiveBuilder);
diff --git a/GUI/Views/FitWidgets/RunFitControlWidget.cpp b/GUI/Views/FitWidgets/RunFitControlWidget.cpp
index 85adba129a4bf725355e6f2426ca54a63375e03a..84b9018f4efdb4e3fb338de8d20514bbaec27616 100644
--- a/GUI/Views/FitWidgets/RunFitControlWidget.cpp
+++ b/GUI/Views/FitWidgets/RunFitControlWidget.cpp
@@ -104,7 +104,7 @@ void RunFitControlWidget::onSliderValueChanged(int value)
     int interval = sliderValueToUpdateInterval(value);
     m_updateIntervalLabel->setText(QString::number(interval));
     if (fitSuiteItem())
-        fitSuiteItem()->setItemValue(FitSuiteItem::P_UPDATE_INTERVAL, interval);
+        fitSuiteItem()->setUpdateInterval(interval);
 }
 
 void RunFitControlWidget::onFitSuitePropertyChange(const QString& name)
@@ -119,7 +119,7 @@ void RunFitControlWidget::subscribeToItem()
 {
     updateControlElements();
 
-    fitSuiteItem()->setItemValue(FitSuiteItem::P_UPDATE_INTERVAL, sliderUpdateInterval());
+    fitSuiteItem()->setUpdateInterval(sliderUpdateInterval());
 
     fitSuiteItem()->mapper()->setOnPropertyChange(
         [this](const QString& name) { onFitSuitePropertyChange(name); }, this);