diff --git a/StRoot/StSpinPool/StFcsPi0FinderForEcal/README b/StRoot/StFcsPi0FinderForEcal/README
similarity index 100%
rename from StRoot/StSpinPool/StFcsPi0FinderForEcal/README
rename to StRoot/StFcsPi0FinderForEcal/README
diff --git a/StRoot/StSpinPool/StFcsPi0FinderForEcal/StFcsPi0FinderForEcal.cxx b/StRoot/StFcsPi0FinderForEcal/StFcsPi0FinderForEcal.cxx
similarity index 99%
rename from StRoot/StSpinPool/StFcsPi0FinderForEcal/StFcsPi0FinderForEcal.cxx
rename to StRoot/StFcsPi0FinderForEcal/StFcsPi0FinderForEcal.cxx
index bc3fce6b328..365ddc7d667 100644
--- a/StRoot/StSpinPool/StFcsPi0FinderForEcal/StFcsPi0FinderForEcal.cxx
+++ b/StRoot/StFcsPi0FinderForEcal/StFcsPi0FinderForEcal.cxx
@@ -3,6 +3,7 @@
 //
 //critical plots for offline QA: h1_inv_mass_cluster , h1_two_cluster_energy_allcut , h1_dgg_cluster  , h2_cluster_dgg_vs_E1pE2
 //
+//Update 3/12/24: move the StFcsPi0FinderForEcal to StRoot , no dependent on StSpinPool , also comment out 2 unused head file
 //
 
 #include "StFcsPi0FinderForEcal.h"
@@ -16,8 +17,8 @@
 #include "StFcsDbMaker/StFcsDbMaker.h"
 #include "StMessMgr.h"
 #include "StMuDSTMaker/COMMON/StMuTypes.hh"
-#include "StSpinPool/StFcsQaMaker/StFcsQaMaker.h"
-#include "StSpinPool/StFcsRawDaqReader/StFcsRawDaqReader.h"
+//#include "StSpinPool/StFcsQaMaker/StFcsQaMaker.h"
+//#include "StSpinPool/StFcsRawDaqReader/StFcsRawDaqReader.h"
 #include "StThreeVectorF.hh"
 #include "Stypes.h"
 #include "TBox.h"
diff --git a/StRoot/StSpinPool/StFcsPi0FinderForEcal/StFcsPi0FinderForEcal.h b/StRoot/StFcsPi0FinderForEcal/StFcsPi0FinderForEcal.h
similarity index 100%
rename from StRoot/StSpinPool/StFcsPi0FinderForEcal/StFcsPi0FinderForEcal.h
rename to StRoot/StFcsPi0FinderForEcal/StFcsPi0FinderForEcal.h
diff --git a/StRoot/St_QA_Maker/StEventQAMaker.cxx b/StRoot/St_QA_Maker/StEventQAMaker.cxx
index 458c77c2424..e89040a8f3e 100644
--- a/StRoot/St_QA_Maker/StEventQAMaker.cxx
+++ b/StRoot/St_QA_Maker/StEventQAMaker.cxx
@@ -47,7 +47,7 @@
 
 //fcs
 #define SKIPDefImp
-#include "StSpinPool/StFcsPi0FinderForEcal/StFcsPi0FinderForEcal.cxx"
+#include "StFcsPi0FinderForEcal/StFcsPi0FinderForEcal.cxx"
 #undef SKIPDefImp
                                                                             
 #include "StEvent/StTpcRawData.h"