diff --git a/source/module_hamilt_general/module_xc/xc_functional_vxc.cpp b/source/module_hamilt_general/module_xc/xc_functional_vxc.cpp
index 819ef4408a..4b91b8e668 100644
--- a/source/module_hamilt_general/module_xc/xc_functional_vxc.cpp
+++ b/source/module_hamilt_general/module_xc/xc_functional_vxc.cpp
@@ -7,7 +7,6 @@
 #include "xc_functional.h"
 #include "module_base/parallel_reduce.h"
 #include "module_base/timer.h"
-#include "xc_functional.h"
 
 // [etxc, vtxc, v] = XC_Functional::v_xc(...)
 std::tuple<double,double,ModuleBase::matrix> XC_Functional::v_xc(