diff --git a/src/Gui/DlgSettingsImageImp.h b/src/Gui/DlgSettingsImageImp.h
index d94b6b5265..f5a7ab2727 100644
--- a/src/Gui/DlgSettingsImageImp.h
+++ b/src/Gui/DlgSettingsImageImp.h
@@ -35,7 +35,7 @@ namespace Dialog {
 class Ui_DlgSettingsImage;
 
 /**
- * The DlgSettings3DViewImp class implements a preference page to change settings
+ * The DlgSettingsImageImp class implements a preference page to change settings
  * for the Inventor viewer.
  * @author Werner Mayer
  */
diff --git a/src/Gui/DlgSettingsUnitsImp.h b/src/Gui/DlgSettingsUnitsImp.h
index a4ecdd5c16..e15992187a 100644
--- a/src/Gui/DlgSettingsUnitsImp.h
+++ b/src/Gui/DlgSettingsUnitsImp.h
@@ -59,4 +59,4 @@ private:
 } // namespace Dialog
 } // namespace Gui
 
-#endif // GUI_DIALOG_DLGSETTINGS3DVIEWIMP_H
+#endif // GUI_DIALOG_DLGSETTINGSUnitsIMP_H
diff --git a/src/Mod/Raytracing/Gui/DlgSettingsRayImp.cpp b/src/Mod/Raytracing/Gui/DlgSettingsRayImp.cpp
index b24d9f86cb..7bb0be1695 100644
--- a/src/Mod/Raytracing/Gui/DlgSettingsRayImp.cpp
+++ b/src/Mod/Raytracing/Gui/DlgSettingsRayImp.cpp
@@ -36,7 +36,7 @@ using namespace RaytracingGui;
 /* TRANSLATOR RaytracingGui::DlgSettingsRayImp */
 
 /**
- *  Constructs a DlgSettings3DViewImp which is a child of 'parent', with the 
+ *  Constructs a DlgSettingsRayImp which is a child of 'parent', with the
  *  name 'name' and widget flags set to 'f' 
  */
 DlgSettingsRayImp::DlgSettingsRayImp( QWidget* parent )
diff --git a/src/Mod/Raytracing/Gui/DlgSettingsRayImp.h b/src/Mod/Raytracing/Gui/DlgSettingsRayImp.h
index 794c612217..018f4703f6 100644
--- a/src/Mod/Raytracing/Gui/DlgSettingsRayImp.h
+++ b/src/Mod/Raytracing/Gui/DlgSettingsRayImp.h
@@ -31,7 +31,7 @@ namespace RaytracingGui {
 class Ui_DlgSettingsRay;
 
 /**
- * The DlgSettings3DViewImp class implements a preference page to change settings
+ * The DlgSettingsRayImp class implements a preference page to change settings
  * for the Inventor viewer.
  * \author Jürgen Riegel
  */
diff --git a/src/Mod/Start/Gui/DlgStartPreferencesImp.cpp b/src/Mod/Start/Gui/DlgStartPreferencesImp.cpp
index 4bb516bf2d..3a6d6fe55c 100644
--- a/src/Mod/Start/Gui/DlgStartPreferencesImp.cpp
+++ b/src/Mod/Start/Gui/DlgStartPreferencesImp.cpp
@@ -32,7 +32,7 @@
 using namespace StartGui;
 
 /**
- *  Constructs a DlgSettings3DViewImp which is a child of 'parent' 
+ *  Constructs a DlgStartPreferencesImp which is a child of 'parent'
  */
 DlgStartPreferencesImp::DlgStartPreferencesImp( QWidget* parent )
   : PreferencePage( parent )