diff --git a/CMakeLists.txt b/CMakeLists.txt
index 166814d6f3..5745173cc1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -189,7 +189,6 @@ endif()
 # Use DSP hardware
 if (USE_DSP)
   set(USE_ELPA OFF)
-  set(ENABLE_LCAO OFF)
   set(ABACUS_BIN_NAME abacus_dsp)
 endif()
 
diff --git a/source/source_base/kernels/math_kernel_op.cpp b/source/source_base/kernels/math_kernel_op.cpp
index fa1bb4628c..1000637554 100644
--- a/source/source_base/kernels/math_kernel_op.cpp
+++ b/source/source_base/kernels/math_kernel_op.cpp
@@ -182,6 +182,8 @@ template struct matrix_mul_vector_op<std::complex<double>, base_device::DEVICE_C
 template struct matrixTranspose_op<double, base_device::DEVICE_CPU>;
 #endif
 #ifdef __DSP
+template struct gemm_op_mt<float, base_device::DEVICE_CPU>;
+template struct gemm_op_mt<double, base_device::DEVICE_CPU>;
 template struct gemv_op_mt<std::complex<float>, base_device::DEVICE_CPU>;
 template struct gemv_op_mt<std::complex<double>, base_device::DEVICE_CPU>;
 template struct gemm_op_mt<std::complex<float>, base_device::DEVICE_CPU>;