diff --git a/DDCore/CMakeLists.txt b/DDCore/CMakeLists.txt
index d9544d497409a3afb8730d0513fde91d5d242b40..b0e69b9b1a292bf02ab8e80283a4e921baa861a2 100644
--- a/DDCore/CMakeLists.txt
+++ b/DDCore/CMakeLists.txt
@@ -18,7 +18,6 @@ dd4hep_add_dictionary( G__DD4hep
   include/DD4hep/*.h
   include/DD4hep/detail/*.h
   include/XML/*.h
-  src/DetectorImp.h
   src/RootDictionary.h
   EXCLUDE include/DD4hep/DetFactoryHelper.h
   include/DD4hep/Any.h
diff --git a/DDCore/src/DetectorImp.h b/DDCore/include/DD4hep/DetectorImp.h
similarity index 100%
rename from DDCore/src/DetectorImp.h
rename to DDCore/include/DD4hep/DetectorImp.h
diff --git a/DDCore/src/DetectorImp.cpp b/DDCore/src/DetectorImp.cpp
index 6b63f471856c33c1c349e6bed0bc0a031499a808..ccb1a5ac59a4dd0af1b8028cccf85bce2e9eee36 100644
--- a/DDCore/src/DetectorImp.cpp
+++ b/DDCore/src/DetectorImp.cpp
@@ -23,7 +23,7 @@
 #include "DD4hep/detail/DetectorInterna.h"
 #include "DD4hep/detail/VolumeManagerInterna.h"
 #include "DD4hep/detail/OpticalSurfaceManagerInterna.h"
-#include "DetectorImp.h"
+#include "DD4hep/DetectorImp.h"
 
 // C/C++ include files
 #include <iostream>
diff --git a/DDCore/src/RootDictionary.h b/DDCore/src/RootDictionary.h
index ab50397708cb78086c23d222de815127fb4b5afc..0fd6bfd36ff9fa5b98d09e29dcfc777227422b25 100644
--- a/DDCore/src/RootDictionary.h
+++ b/DDCore/src/RootDictionary.h
@@ -36,7 +36,7 @@
 #include "DD4hep/DetectorData.h"
 #include "DD4hep/DetectorProcessor.h"
 #include "DD4hep/ComponentProperties.h"
-#include "../src/DetectorImp.h"
+#include "DD4hep/DetectorImp.h"
 
 // C/C++ include files
 #include <vector>
diff --git a/DDCore/src/plugins/StandardPlugins.cpp b/DDCore/src/plugins/StandardPlugins.cpp
index 866c289d34facfc4d23c5b9f0fb4151e8d808fa7..eb81f8cbebf2a398ee8a165906e8eb79ee991db2 100644
--- a/DDCore/src/plugins/StandardPlugins.cpp
+++ b/DDCore/src/plugins/StandardPlugins.cpp
@@ -13,6 +13,7 @@
 
 // Framework include files
 #include "DD4hep/Detector.h"
+#include "DD4hep/DetectorImp.h"
 #include "DD4hep/Memory.h"
 #include "DD4hep/DD4hepUI.h"
 #include "DD4hep/Factories.h"
@@ -26,7 +27,6 @@
 #include "XML/DocumentHandler.h"
 #include "XML/XMLElements.h"
 #include "XML/XMLTags.h"
-#include "../DetectorImp.h"
 
 // ROOT includes
 #include "TInterpreter.h"