diff --git a/GUI/Model/Device/InstrumentItems.cpp b/GUI/Model/Device/InstrumentItems.cpp
index ce8774f430727c15694f9dc502c98579fc365386..1f209bba2e384678bb79b5a49beb69a6beeac018 100644
--- a/GUI/Model/Device/InstrumentItems.cpp
+++ b/GUI/Model/Device/InstrumentItems.cpp
@@ -114,9 +114,9 @@ InstrumentItem* InstrumentItem::createItemCopy() const
     return copy;
 }
 
-bool InstrumentItem::alignedWith(const DatafileItem* item) const
+bool InstrumentItem::alignedWith(const DatafileItem* dfileItem) const
 {
-    return axdims() == item->axdims();
+    return axdims() == dfileItem->axdims();
 }
 
 void InstrumentItem::writeTo(QXmlStreamWriter* w) const
@@ -367,21 +367,21 @@ std::vector<int> SpecularInstrumentItem::axdims() const
     return {scanItem()->inclinationAxisItem()->size()};
 }
 
-void SpecularInstrumentItem::updateToRealData(const DatafileItem* item)
+void SpecularInstrumentItem::updateToRealData(const DatafileItem* dfileItem)
 {
-    if (axdims().size() != item->axdims().size())
+    if (axdims().size() != dfileItem->axdims().size())
         throw std::runtime_error("Specular instrument type is incompatible with passed data shape");
 
-    const auto& dataAxis = item->dataItem()->c_field()->axis(0);
+    const auto& dataAxis = dfileItem->dataItem()->c_field()->axis(0);
     scanItem()->updateToData(dataAxis);
     scanItem()->grazingScanItem()->updateAxIndicators(makeFrame());
 }
 
-bool SpecularInstrumentItem::alignedWith(const DatafileItem* item) const
+bool SpecularInstrumentItem::alignedWith(const DatafileItem* dfileItem) const
 {
-    if (!item->holdsDimensionalData())
+    if (!dfileItem->holdsDimensionalData())
         return scanItem()->grazingScanItem()->uniformAlphaAxisSelected()
-               && axdims() == item->axdims();
+               && axdims() == dfileItem->axdims();
 
     if (!scanItem()->grazingScanItem()->pointwiseAlphaAxisSelected())
         return false;
@@ -394,7 +394,7 @@ bool SpecularInstrumentItem::alignedWith(const DatafileItem* item) const
     if (!instrumentAxis)
         return false;
 
-    const auto& native_axis = item->dataItem()->c_field()->axis(0);
+    const auto& native_axis = dfileItem->dataItem()->c_field()->axis(0);
     return *instrumentAxis == native_axis;
 }
 
@@ -586,12 +586,12 @@ std::vector<int> OffspecInstrumentItem::axdims() const
     return {scanItem()->grazingScanItem()->nBins(), detectorItem()->ySize()};
 }
 
-void OffspecInstrumentItem::updateToRealData(const DatafileItem* dataItem)
+void OffspecInstrumentItem::updateToRealData(const DatafileItem* dfileItem)
 {
-    if (!dataItem)
+    if (!dfileItem)
         return;
 
-    const auto data_shape = dataItem->axdims();
+    const auto data_shape = dfileItem->axdims();
     if (axdims().size() != data_shape.size())
         throw std::runtime_error("Offspec instrument type is incompatible with passed data shape");
 
@@ -689,12 +689,12 @@ std::vector<int> GISASInstrumentItem::axdims() const
     return {(int)detectorItem()->phiAxis().nbins(), (int)detectorItem()->alphaAxis().nbins()};
 }
 
-void GISASInstrumentItem::updateToRealData(const DatafileItem* item)
+void GISASInstrumentItem::updateToRealData(const DatafileItem* dfileItem)
 {
-    if (!item)
+    if (!dfileItem)
         return;
 
-    const auto data_shape = item->axdims();
+    const auto data_shape = dfileItem->axdims();
     if (axdims().size() != data_shape.size())
         throw std::runtime_error("GISAS instrument type is incompatible with passed data shape.");
     ASSERT(detectorItem());
diff --git a/GUI/Model/Device/InstrumentItems.h b/GUI/Model/Device/InstrumentItems.h
index 2619fcafc496bf301b192ecc77bd1cd61c9c717f..e075b06d1967cecebb458405ca030f931eec2d79 100644
--- a/GUI/Model/Device/InstrumentItems.h
+++ b/GUI/Model/Device/InstrumentItems.h
@@ -46,9 +46,9 @@ public:
 
     virtual std::vector<int> axdims() const = 0;
 
-    virtual void updateToRealData(const DatafileItem* item) = 0;
+    virtual void updateToRealData(const DatafileItem* dfileItem) = 0;
 
-    virtual bool alignedWith(const DatafileItem* item) const;
+    virtual bool alignedWith(const DatafileItem* dfileItem) const;
 
     virtual Frame makeFrame() const = 0;
 
@@ -131,8 +131,8 @@ public:
     QString instrumentType() const override { return "Specular"; }
 
     std::vector<int> axdims() const override;
-    void updateToRealData(const DatafileItem* item) override;
-    bool alignedWith(const DatafileItem* item) const override;
+    void updateToRealData(const DatafileItem* dfileItem) override;
+    bool alignedWith(const DatafileItem* dfileItem) const override;
     Frame makeFrame() const override;
     ISimulation* createSimulation(const MultiLayer& sample) const override;
 
@@ -147,7 +147,7 @@ public:
 
     QString instrumentType() const override { return "Depth probe"; }
     std::vector<int> axdims() const override;
-    void updateToRealData(const DatafileItem* item) override;
+    void updateToRealData(const DatafileItem* dfileItem) override;
     Frame makeFrame() const override;
     ISimulation* createSimulation(const MultiLayer& sample) const override;
     void writeTo(QXmlStreamWriter* w) const override;
@@ -166,7 +166,7 @@ public:
 
     QString instrumentType() const override { return "Off specular"; }
     std::vector<int> axdims() const override;
-    void updateToRealData(const DatafileItem* item) override;
+    void updateToRealData(const DatafileItem* dfileItem) override;
     Frame makeFrame() const override;
     ISimulation* createSimulation(const MultiLayer& sample) const override;
     void writeTo(QXmlStreamWriter* w) const override;
@@ -185,7 +185,7 @@ public:
 
     QString instrumentType() const override { return "GISAS"; }
     std::vector<int> axdims() const override;
-    void updateToRealData(const DatafileItem* item) override;
+    void updateToRealData(const DatafileItem* dfileItem) override;
     Frame makeFrame() const override;
     ISimulation* createSimulation(const MultiLayer& sample) const override;
     void writeTo(QXmlStreamWriter* w) const override;