diff --git a/core/base/CMakeLists.txt b/core/base/CMakeLists.txt
index 04e2bcd435ad75bd9fdd55dff36d7c05d87f3ee6..5fe27362d381b5a6763ed14281794bcc1ebe9fa3 100644
--- a/core/base/CMakeLists.txt
+++ b/core/base/CMakeLists.txt
@@ -58,3 +58,6 @@ generate_cbm_library()
 Install(FILES CbmDigitize.h CbmTrackingDetectorInterfaceBase.h report/CbmReportElement.h
         DESTINATION include
        )
+
+# Fles tools/utils
+Add_Subdirectory(utils/flestools)
diff --git a/fles/flestools/CMakeLists.txt b/core/base/utils/flestools/CMakeLists.txt
similarity index 100%
rename from fles/flestools/CMakeLists.txt
rename to core/base/utils/flestools/CMakeLists.txt
diff --git a/fles/flestools/CbmFlesCanvasTools.cxx b/core/base/utils/flestools/CbmFlesCanvasTools.cxx
similarity index 100%
rename from fles/flestools/CbmFlesCanvasTools.cxx
rename to core/base/utils/flestools/CbmFlesCanvasTools.cxx
diff --git a/fles/flestools/CbmFlesCanvasTools.h b/core/base/utils/flestools/CbmFlesCanvasTools.h
similarity index 100%
rename from fles/flestools/CbmFlesCanvasTools.h
rename to core/base/utils/flestools/CbmFlesCanvasTools.h
diff --git a/fles/flestools/CbmFlesHistosTools.cxx b/core/base/utils/flestools/CbmFlesHistosTools.cxx
similarity index 100%
rename from fles/flestools/CbmFlesHistosTools.cxx
rename to core/base/utils/flestools/CbmFlesHistosTools.cxx
diff --git a/fles/flestools/CbmFlesHistosTools.h b/core/base/utils/flestools/CbmFlesHistosTools.h
similarity index 100%
rename from fles/flestools/CbmFlesHistosTools.h
rename to core/base/utils/flestools/CbmFlesHistosTools.h
diff --git a/fles/flestools/CbmFormatDecHexPrintout.cxx b/core/base/utils/flestools/CbmFormatDecHexPrintout.cxx
similarity index 100%
rename from fles/flestools/CbmFormatDecHexPrintout.cxx
rename to core/base/utils/flestools/CbmFormatDecHexPrintout.cxx
diff --git a/fles/flestools/CbmFormatDecHexPrintout.h b/core/base/utils/flestools/CbmFormatDecHexPrintout.h
similarity index 100%
rename from fles/flestools/CbmFormatDecHexPrintout.h
rename to core/base/utils/flestools/CbmFormatDecHexPrintout.h
diff --git a/fles/flestools/CbmFormatMsBufferPrintout.cxx b/core/base/utils/flestools/CbmFormatMsBufferPrintout.cxx
similarity index 100%
rename from fles/flestools/CbmFormatMsBufferPrintout.cxx
rename to core/base/utils/flestools/CbmFormatMsBufferPrintout.cxx
diff --git a/fles/flestools/CbmFormatMsBufferPrintout.h b/core/base/utils/flestools/CbmFormatMsBufferPrintout.h
similarity index 100%
rename from fles/flestools/CbmFormatMsBufferPrintout.h
rename to core/base/utils/flestools/CbmFormatMsBufferPrintout.h
diff --git a/fles/flestools/CbmFormatMsHeaderPrintout.cxx b/core/base/utils/flestools/CbmFormatMsHeaderPrintout.cxx
similarity index 100%
rename from fles/flestools/CbmFormatMsHeaderPrintout.cxx
rename to core/base/utils/flestools/CbmFormatMsHeaderPrintout.cxx
diff --git a/fles/flestools/CbmFormatMsHeaderPrintout.h b/core/base/utils/flestools/CbmFormatMsHeaderPrintout.h
similarity index 100%
rename from fles/flestools/CbmFormatMsHeaderPrintout.h
rename to core/base/utils/flestools/CbmFormatMsHeaderPrintout.h
diff --git a/fles/flestools/CbmFormatTsPrintout.cxx b/core/base/utils/flestools/CbmFormatTsPrintout.cxx
similarity index 100%
rename from fles/flestools/CbmFormatTsPrintout.cxx
rename to core/base/utils/flestools/CbmFormatTsPrintout.cxx
diff --git a/fles/flestools/CbmFormatTsPrintout.h b/core/base/utils/flestools/CbmFormatTsPrintout.h
similarity index 100%
rename from fles/flestools/CbmFormatTsPrintout.h
rename to core/base/utils/flestools/CbmFormatTsPrintout.h
diff --git a/fles/CMakeLists.txt b/fles/CMakeLists.txt
index 56808e8bb81ce42135b91df63222bbf163cc47d2..df331e2b1a835a1e19ff4c9eb2e9172d1d66ec27 100644
--- a/fles/CMakeLists.txt
+++ b/fles/CMakeLists.txt
@@ -1,5 +1,3 @@
-Add_Subdirectory(flestools)
-
 Add_Subdirectory(mcbm2018)
 Add_Subdirectory(cosy2019)
 Add_Subdirectory(star2019)