diff --git a/source/Makefile.Objects b/source/Makefile.Objects
index b4933de79a..f6ed91aac4 100644
--- a/source/Makefile.Objects
+++ b/source/Makefile.Objects
@@ -56,7 +56,6 @@ VPATH=./src_global:\
 ./module_hamilt_lcao/module_dftu:\
 ./module_hamilt_lcao/module_deltaspin:\
 ./module_hamilt_lcao/hamilt_lcaodft/operator_lcao:\
-./module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress:\
 ./module_hamilt_lcao/module_gint:\
 ./module_relax:\
 ./module_relax/relax_old:\
diff --git a/source/module_hamilt_lcao/hamilt_lcaodft/CMakeLists.txt b/source/module_hamilt_lcao/hamilt_lcaodft/CMakeLists.txt
index abb97265e6..72209f066e 100644
--- a/source/module_hamilt_lcao/hamilt_lcaodft/CMakeLists.txt
+++ b/source/module_hamilt_lcao/hamilt_lcaodft/CMakeLists.txt
@@ -15,7 +15,7 @@ if(ENABLE_LCAO)
         operator_lcao/td_nonlocal_lcao.cpp
         operator_lcao/sc_lambda_lcao.cpp
         operator_lcao/dftu_lcao.cpp
-        pulay_force_stress/pulay_force_stress_center2.cpp
+        pulay_force_stress_center2.cpp
         FORCE_STRESS.cpp
         FORCE_gamma.cpp
         FORCE_k.cpp
diff --git a/source/module_hamilt_lcao/hamilt_lcaodft/FORCE_gamma.cpp b/source/module_hamilt_lcao/hamilt_lcaodft/FORCE_gamma.cpp
index 42ea5fedf8..4eff6d7280 100644
--- a/source/module_hamilt_lcao/hamilt_lcaodft/FORCE_gamma.cpp
+++ b/source/module_hamilt_lcao/hamilt_lcaodft/FORCE_gamma.cpp
@@ -13,7 +13,7 @@
 #include "module_elecstate/elecstate_lcao.h"
 #include "module_hamilt_lcao/hamilt_lcaodft/LCAO_domain.h"
 #include "module_io/write_HS.h"
-#include "module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress/pulay_force_stress.h"
+#include "module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress.h"
 
 template <>
 void Force_LCAO<double>::allocate(const Parallel_Orbitals& pv,
diff --git a/source/module_hamilt_lcao/hamilt_lcaodft/FORCE_k.cpp b/source/module_hamilt_lcao/hamilt_lcaodft/FORCE_k.cpp
index 7692f5cb30..22e270a21b 100644
--- a/source/module_hamilt_lcao/hamilt_lcaodft/FORCE_k.cpp
+++ b/source/module_hamilt_lcao/hamilt_lcaodft/FORCE_k.cpp
@@ -12,7 +12,7 @@
 #include "module_hamilt_lcao/hamilt_lcaodft/LCAO_domain.h"
 #include "module_hamilt_pw/hamilt_pwdft/global.h"
 #include "module_io/write_HS.h"
-#include "module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress/pulay_force_stress.h"
+#include "module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress.h"
 
 #include <map>
 #include <unordered_map>
diff --git a/source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress/pulay_force_stress.h b/source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress.h
similarity index 100%
rename from source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress/pulay_force_stress.h
rename to source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress.h
diff --git a/source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress/pulay_force_stress_center2.cpp b/source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress_center2.cpp
similarity index 100%
rename from source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress/pulay_force_stress_center2.cpp
rename to source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress_center2.cpp
diff --git a/source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress/pulay_force_stress_center2_template.hpp b/source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress_center2_template.hpp
similarity index 100%
rename from source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress/pulay_force_stress_center2_template.hpp
rename to source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress_center2_template.hpp
diff --git a/source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress/pulay_force_stress_gint.hpp b/source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress_gint.hpp
similarity index 100%
rename from source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress/pulay_force_stress_gint.hpp
rename to source/module_hamilt_lcao/hamilt_lcaodft/pulay_force_stress_gint.hpp