diff --git a/Tracking/TrkEvent/TrkPatternParameters/CMakeLists.txt b/Tracking/TrkEvent/TrkPatternParameters/CMakeLists.txt
deleted file mode 100644
index 5d2d7d0993dc145d49cdda158627467b35379af5..0000000000000000000000000000000000000000
--- a/Tracking/TrkEvent/TrkPatternParameters/CMakeLists.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-################################################################################
-# Package: TrkPatternParameters
-################################################################################
-
-# Declare the package name:
-atlas_subdir( TrkPatternParameters )
-
-# Declare the package's dependencies:
-atlas_depends_on_subdirs( PUBLIC
-                          Tracking/TrkEvent/TrkEventPrimitives
-                          Tracking/TrkEvent/TrkParametersBase
-                          PRIVATE
-                          GaudiKernel
-                          Tracking/TrkDetDescr/TrkSurfaces )
-
-# External dependencies:
-find_package( Boost COMPONENTS filesystem thread system )
-
-# Component(s) in the package:
-atlas_add_library( TrkPatternParameters
-                   src/*.cxx
-                   PUBLIC_HEADERS TrkPatternParameters
-                   PRIVATE_INCLUDE_DIRS ${Boost_INCLUDE_DIRS}
-                   LINK_LIBRARIES TrkEventPrimitives TrkParametersBase
-                   PRIVATE_LINK_LIBRARIES ${Boost_LIBRARIES} GaudiKernel TrkSurfaces )
-
diff --git a/Tracking/TrkEvent/TrkPatternParameters/TrkPatternParameters/PatternTrackParameters.h b/Tracking/TrkEvent/TrkPatternParameters/TrkPatternParameters/PatternTrackParameters.h
index bf2c6ce8556111e1f71becda63057bcc4ce92426..b7c55ef01b1e8fa0d0721acf6625d869e28748a6 100755
--- a/Tracking/TrkEvent/TrkPatternParameters/TrkPatternParameters/PatternTrackParameters.h
+++ b/Tracking/TrkEvent/TrkPatternParameters/TrkPatternParameters/PatternTrackParameters.h
@@ -16,6 +16,7 @@
 #define PatternTrackParameters_H
 
 #include "TrkParametersBase/ParametersBase.h"
+#include "TrkParametersBase/Charged.h"
 #include "TrkEventPrimitives/PropDirection.h"
 #include "TrkPatternParameters/NoiseOnSurface.h"
 
diff --git a/Tracking/TrkEvent/TrkPatternParameters/src/PatternTrackParameters.cxx b/Tracking/TrkEvent/TrkPatternParameters/src/PatternTrackParameters.cxx
index 18ae9e06c0970ddf8046b44f5c96ba07d9c7ec7f..7aa774993f47a429bf4ab8a705d6ab50055c8bb8 100755
--- a/Tracking/TrkEvent/TrkPatternParameters/src/PatternTrackParameters.cxx
+++ b/Tracking/TrkEvent/TrkPatternParameters/src/PatternTrackParameters.cxx
@@ -16,7 +16,6 @@
 #include "TrkSurfaces/CylinderSurface.h"
 #include "TrkSurfaces/StraightLineSurface.h"
 #include "TrkPatternParameters/PatternTrackParameters.h"
-#include "TrkParametersBase/ChargeDefinition.h"
 
 ///////////////////////////////////////////////////////////////////
 // Conversion Trk::PatternTrackParameters to  Trk::TrackParameters