diff --git a/src/transmissionReconstruction/reconstruction/solvingEquationSystem/TVAL/TVAL.cpp b/src/transmissionReconstruction/reconstruction/solvingEquationSystem/TVAL/TVAL.cpp
index 9867575..8ebeb9e 100644
--- a/src/transmissionReconstruction/reconstruction/solvingEquationSystem/TVAL/TVAL.cpp
+++ b/src/transmissionReconstruction/reconstruction/solvingEquationSystem/TVAL/TVAL.cpp
@@ -94,7 +94,7 @@ namespace Recon
         size_t bDims[3]={(size_t)b.getDimSize(0),(size_t)b.getDimSize(1),(size_t)b.getDimSize(2)};
         size_t rdims[3] = {(size_t)dims[0], (size_t)dims[1], (size_t)dims[2]};
         bool pagelocked = false;
-        auto result = TVALGPU(row_idx, col_indx,  csrValues, M.getM(), M.getN(), nz, bData, bDims, rdims, opt, device, false);
+        auto result = TVALGPU( col_indx, row_idx,  csrValues, M.getM(), M.getN(), nz, bData, bDims, rdims, opt, device, false);
         mkl_sparse_destroy(csrA);
         delete [] row_idx;
         delete [] bData;