diff --git a/source/module_lr/potentials/kernel_xc.cpp b/source/module_lr/potentials/kernel_xc.cpp
index 96b0aa944f..6a946c2420 100644
--- a/source/module_lr/potentials/kernel_xc.cpp
+++ b/source/module_lr/potentials/kernel_xc.cpp
@@ -66,7 +66,8 @@ void LR::KernelXC::f_xc_libxc(const int& nspin, const double& omega, const doubl
 #ifdef _OPENMP
 #pragma omp parallel for schedule(static, 1024)
 #endif
-                for (int ir = 0; ir < nrxx; ++ir) rhor[ir] = rho[ir * nspin + is];
+                for (int ir = 0; ir < nrxx; ++ir) { rhor[ir] = rho[ir * nspin + is];
+}
                 gdr[is].resize(nrxx);
                 LR_Util::grad(rhor.data(), gdr[is].data(), rho_basis_, tpiba);
             }
@@ -77,8 +78,9 @@ void LR::KernelXC::f_xc_libxc(const int& nspin, const double& omega, const doubl
 #ifdef _OPENMP
 #pragma omp parallel for schedule(static, 1024)
 #endif
-                for (int ir = 0; ir < nrxx; ++ir)
+                for (int ir = 0; ir < nrxx; ++ir) {
                     sigma[ir] = gdr[0][ir] * gdr[0][ir];
+}
             }
             else
             {
@@ -145,13 +147,16 @@ void LR::KernelXC::f_xc_libxc(const int& nspin, const double& omega, const doubl
                 {
                     // 0. drho
                     this->grad_kernel_set_.emplace("drho_gs", std::vector<ModuleBase::Vector3<double>>(nrxx));
-                    for (int ir = 0; ir < nrxx; ++ir)this->grad_kernel_set_["drho_gs"][ir] = gdr[0][ir];
+                    for (int ir = 0; ir < nrxx; ++ir) {this->grad_kernel_set_["drho_gs"][ir] = gdr[0][ir];
+}
                     // 1. $2f^{\rho\sigma}*\nabla\rho$
                     this->grad_kernel_set_.emplace("2_v2rhosigma_drho", std::vector<ModuleBase::Vector3<double>>(nrxx));
-                    for (int ir = 0; ir < nrxx; ++ir)this->grad_kernel_set_["2_v2rhosigma_drho"][ir] = gdr[0][ir] * v2rs.at(ir) * 2.;
+                    for (int ir = 0; ir < nrxx; ++ir) {this->grad_kernel_set_["2_v2rhosigma_drho"][ir] = gdr[0][ir] * v2rs.at(ir) * 2.;
+}
                     // 2. $4f^{\sigma\sigma}*\nabla\rho$
                     this->grad_kernel_set_.emplace("4_v2sigma2_drho", std::vector<ModuleBase::Vector3<double>>(nrxx));
-                    for (int ir = 0; ir < nrxx; ++ir)this->grad_kernel_set_["4_v2sigma2_drho"][ir] = sigma.at(ir) * v2s2.at(ir) * 4.;
+                    for (int ir = 0; ir < nrxx; ++ir) {this->grad_kernel_set_["4_v2sigma2_drho"][ir] = sigma.at(ir) * v2s2.at(ir) * 4.;
+}
                 }
                 // else if (2 == nspin)    // wrong, to be fixed
                 // {
@@ -210,9 +215,9 @@ void LR::KernelXC::f_xc_libxc(const int& nspin, const double& omega, const doubl
         } // end for( xc_func_type &func : funcs )
         XC_Functional_Libxc::finish_func(funcs);
 
-        if (1 == PARAM.inp.nspin || 2 == PARAM.inp.nspin) return;
+        if (1 == PARAM.inp.nspin || 2 == PARAM.inp.nspin) { return;
         // else if (4 == PARAM.inp.nspin)
-        else//NSPIN != 1,2,4 is not supported
+        } else//NSPIN != 1,2,4 is not supported
         {
             throw std::domain_error("PARAM.inp.nspin =" + std::to_string(PARAM.inp.nspin)
                 + " unfinished in " + std::string(__FILE__) + " line " + std::to_string(__LINE__));