diff --git a/GUI/View/Canvas/ProjectionsEditorCanvas.cpp b/GUI/View/Canvas/ProjectionsEditorCanvas.cpp
index a777919ecce3fd615c2591a6a0a060f68cd45555..c9c568d4050de006d30383b8dd2395dc9509ca72 100644
--- a/GUI/View/Canvas/ProjectionsEditorCanvas.cpp
+++ b/GUI/View/Canvas/ProjectionsEditorCanvas.cpp
@@ -30,7 +30,7 @@ ProjectionsEditorCanvas::ProjectionsEditorCanvas()
     : m_scene(new MaskGraphicsScene)
     , m_view(new MaskGraphicsView(m_scene))
     , m_status_label(new PlotStatusLabel(nullptr, this))
-    , m_currentActivity(MaskFlags::HORIZONTAL_LINE_MODE)
+    , m_current_activity(MaskFlags::HORIZONTAL_LINE_MODE)
 {
     setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 
@@ -48,10 +48,10 @@ ProjectionsEditorCanvas::ProjectionsEditorCanvas()
     // automatically switch to the appropriate projection tab
     connect(m_scene, &MaskGraphicsScene::lineItemMoved, [this](LineItem* sender) {
         if (dynamic_cast<HorizontalLineItem*>(sender)
-            && (m_currentActivity != MaskFlags::VERTICAL_LINE_MODE))
+            && (m_current_activity != MaskFlags::VERTICAL_LINE_MODE))
             emit changeProjectionsTabRequest(MaskFlags::HORIZONTAL_LINE_MODE);
         if (dynamic_cast<VerticalLineItem*>(sender)
-            && (m_currentActivity != MaskFlags::HORIZONTAL_LINE_MODE))
+            && (m_current_activity != MaskFlags::HORIZONTAL_LINE_MODE))
             emit changeProjectionsTabRequest(MaskFlags::VERTICAL_LINE_MODE);
     });
 }
@@ -91,7 +91,7 @@ void ProjectionsEditorCanvas::updateCanvas(Data2DItem* data_item)
     m_status_label->setPlot(cm);
 
     onLeavingColorMap();
-    m_scene->onActivityChanged(m_currentActivity);
+    m_scene->onActivityChanged(m_current_activity);
 }
 
 void ProjectionsEditorCanvas::resetCanvas()
@@ -115,9 +115,9 @@ void ProjectionsEditorCanvas::onEnteringColorMap()
     if (m_live_projection)
         return;
 
-    if (m_currentActivity == MaskFlags::HORIZONTAL_LINE_MODE)
+    if (m_current_activity == MaskFlags::HORIZONTAL_LINE_MODE)
         m_live_projection = std::make_unique<HorizontalLineItem>();
-    else if (m_currentActivity == MaskFlags::VERTICAL_LINE_MODE)
+    else if (m_current_activity == MaskFlags::VERTICAL_LINE_MODE)
         m_live_projection = std::make_unique<VerticalLineItem>();
 
     if (m_live_projection) {
@@ -138,9 +138,9 @@ void ProjectionsEditorCanvas::onLeavingColorMap()
 void ProjectionsEditorCanvas::onPositionChanged(double x, double y)
 {
     if (m_live_projection) {
-        if (m_currentActivity == MaskFlags::HORIZONTAL_LINE_MODE)
+        if (m_current_activity == MaskFlags::HORIZONTAL_LINE_MODE)
             dynamic_cast<HorizontalLineItem*>(m_live_projection.get())->setPos(y);
-        else if (m_currentActivity == MaskFlags::VERTICAL_LINE_MODE)
+        else if (m_current_activity == MaskFlags::VERTICAL_LINE_MODE)
             dynamic_cast<VerticalLineItem*>(m_live_projection.get())->setPos(x);
     }
 }
@@ -154,7 +154,7 @@ void ProjectionsEditorCanvas::onResetViewRequest()
 
 void ProjectionsEditorCanvas::setProjectionsCanvasMode(MaskFlags::MaskMode mask_mode)
 {
-    m_currentActivity = mask_mode;
+    m_current_activity = mask_mode;
     m_scene->onActivityChanged(mask_mode);
     onLeavingColorMap();
 }
diff --git a/GUI/View/Canvas/ProjectionsEditorCanvas.h b/GUI/View/Canvas/ProjectionsEditorCanvas.h
index 530e3be76a1e08f412c6a9d5b988cf35f2ed46de..ccb64cb361bcb43259e8db26df030d34d0ba4b54 100644
--- a/GUI/View/Canvas/ProjectionsEditorCanvas.h
+++ b/GUI/View/Canvas/ProjectionsEditorCanvas.h
@@ -62,7 +62,7 @@ private:
     PlotStatusLabel* m_status_label;
     Data2DItem* m_data_item;
     std::unique_ptr<LineItem> m_live_projection; //!< temporary, matching mouse move
-    MaskFlags::MaskMode m_currentActivity;
+    MaskFlags::MaskMode m_current_activity;
 };
 
 #endif // BORNAGAIN_GUI_VIEW_CANVAS_PROJECTIONSEDITORCANVAS_H