diff --git a/Samples/4_CUDA_Libraries/conjugateGradientPrecond/main.cpp b/Samples/4_CUDA_Libraries/conjugateGradientPrecond/main.cpp
index f8d1d29b0..3ccf2e2e1 100644
--- a/Samples/4_CUDA_Libraries/conjugateGradientPrecond/main.cpp
+++ b/Samples/4_CUDA_Libraries/conjugateGradientPrecond/main.cpp
@@ -252,8 +252,6 @@ int main(int argc, char **argv){
         d_row, I, (N + 1) * sizeof(int), cudaMemcpyHostToDevice));
     checkCudaErrors(cudaMemcpy(
         d_val, val, nz * sizeof(float), cudaMemcpyHostToDevice));
-    checkCudaErrors(cudaMemcpy(
-        d_val, val, nz * sizeof(float), cudaMemcpyHostToDevice));
     checkCudaErrors(cudaMemcpy(
         d_x, x, N*sizeof(float), cudaMemcpyHostToDevice));
     checkCudaErrors(cudaMemcpy(