diff --git a/GUI/Model/Beam/SourceItems.cpp b/GUI/Model/Beam/SourceItems.cpp
index 01b1307180606ef5812bd4c107e5f968eec30a9b..6328e1f6a2b3db2a1c84e780ae8cca4d9c280131 100644
--- a/GUI/Model/Beam/SourceItems.cpp
+++ b/GUI/Model/Beam/SourceItems.cpp
@@ -30,15 +30,15 @@ namespace {
 
 namespace Tag {
 
-const QString Intensity("Intensity");
-const QString Wavelength("Wavelength");
 const QString AzimuthalAngle("AzimuthalAngle");
-const QString InclinationAngle("InclinationAngle");
-const QString GrazingScan("GrazingScan");
-const QString Footprint("Footprint");
 const QString BaseData("BaseData");
 const QString ExpandBeamParametersGroupbox("ExpandBeamParametersGroupbox");
 const QString ExpandFootprintGroupbox("ExpandFootprintGroupbox");
+const QString Footprint("Footprint");
+const QString GrazingScan("GrazingScan");
+const QString InclinationAngle("InclinationAngle");
+const QString Intensity("Intensity");
+const QString Wavelength("Wavelength");
 
 } // namespace Tag