1 files changed, 4 insertions, 2 deletions
diff --git a/Source/FieldSolver/SpectralSolver/SpectralFieldData.H b/Source/FieldSolver/SpectralSolver/SpectralFieldData.H
index a74bfe22b..2abe81889 100644
--- a/Source/FieldSolver/SpectralSolver/SpectralFieldData.H
+++ b/Source/FieldSolver/SpectralSolver/SpectralFieldData.H
@@ -33,8 +33,10 @@ class SpectralFieldData
         SpectralFieldData() = default; // Default constructor
         SpectralFieldData& operator=(SpectralFieldData&& field_data) = default; // Default move assignment
         ~SpectralFieldData();
-        void ForwardTransform( const amrex::MultiFab& mf, const int field_index );
-        void BackwardTransform( amrex::MultiFab& mf, const int field_index );
+        void ForwardTransform( const amrex::MultiFab& mf,
+                               const int field_index, const int i_comp );
+        void BackwardTransform( amrex::MultiFab& mf,
+                                const int field_index, const int i_comp );
 
     private:
         SpectralField Ex, Ey, Ez, Bx, By, Bz, Jx, Jy, Jz, rho_old, rho_new;