diff --git a/Base/Types/VectorWC.h b/Base/Type/VectorWC.h
similarity index 93%
rename from Base/Types/VectorWC.h
rename to Base/Type/VectorWC.h
index 3828e552040df0df0fc52afecd8c4d4be76aacbf..acb1b7bd2be6e5b8cd5af318f05ac3262523fe24 100644
--- a/Base/Types/VectorWC.h
+++ b/Base/Type/VectorWC.h
@@ -2,7 +2,7 @@
 //
 //  BornAgain: simulate and fit reflection and scattering
 //
-//! @file      Base/Types/VectorWC.h
+//! @file      Base/Type/VectorWC.h
 //! @brief     Defines and implements templated class VectorWC.
 //!
 //! @homepage  http://www.bornagainproject.org
@@ -15,8 +15,8 @@
 #ifdef SWIG
 #error no need to expose this header to Swig
 #endif // SWIG
-#ifndef BORNAGAIN_BASE_TYPES_VECTORWC_H
-#define BORNAGAIN_BASE_TYPES_VECTORWC_H
+#ifndef BORNAGAIN_BASE_TYPE_VECTORWC_H
+#define BORNAGAIN_BASE_TYPE_VECTORWC_H
 
 #include "Base/Type/OwningVector.h"
 #include "Base/Util/Assert.h"
@@ -95,4 +95,4 @@ private:
     size_t m_current_index = -1;
 };
 
-#endif // BORNAGAIN_BASE_TYPES_VECTORWC_H
+#endif // BORNAGAIN_BASE_TYPE_VECTORWC_H
diff --git a/GUI/Model/Job/JobsSet.h b/GUI/Model/Job/JobsSet.h
index f69e1b225864f54b2672f040f16814723c590fe7..7234cb15abb87421d42b0b385bfeac5d27c04d8a 100644
--- a/GUI/Model/Job/JobsSet.h
+++ b/GUI/Model/Job/JobsSet.h
@@ -15,7 +15,7 @@
 #ifndef BORNAGAIN_GUI_MODEL_JOB_JOBSSET_H
 #define BORNAGAIN_GUI_MODEL_JOB_JOBSSET_H
 
-#include "Base/Types/VectorWC.h"
+#include "Base/Type/VectorWC.h"
 #include "GUI/Model/Files/DatafilesCleaner.h"
 #include "GUI/Model/Job/JobItem.h"
 #include <QObject>
diff --git a/GUI/Model/Material/MaterialsSet.h b/GUI/Model/Material/MaterialsSet.h
index 66e9adc6e2b7773810a7f4c1bcb4c1fa033653c7..c9abcc606ff0b50942f519e01eca620b7260667c 100644
--- a/GUI/Model/Material/MaterialsSet.h
+++ b/GUI/Model/Material/MaterialsSet.h
@@ -15,7 +15,7 @@
 #ifndef BORNAGAIN_GUI_MODEL_MATERIAL_MATERIALSSET_H
 #define BORNAGAIN_GUI_MODEL_MATERIAL_MATERIALSSET_H
 
-#include "Base/Types/VectorWC.h"
+#include "Base/Type/VectorWC.h"
 #include <QMap>
 #include <QObject>
 #include <QVector>