diff --git a/Source/ablastr/fields/PoissonSolver.H b/Source/ablastr/fields/PoissonSolver.H
index 81af7943b77..d163f56c2a3 100644
--- a/Source/ablastr/fields/PoissonSolver.H
+++ b/Source/ablastr/fields/PoissonSolver.H
@@ -82,7 +82,7 @@ namespace ablastr::fields {
  * \param[in] dmap the distribution mapping per level (e.g., from AmrMesh)
  * \param[in] grids the grids per level (e.g., from AmrMesh)
  * \param[in] boundary_handler a handler for boundary conditions, for example @see ElectrostaticSolver::PoissonBoundaryHandler
- * \param[in] is_solver_igf_on_lev0 boolean to select the Poisson solver: 1 for FFT on level 0 & Multigrid on other levels, 0 for Multigrid on all levels 
+ * \param[in] is_solver_igf_on_lev0 boolean to select the Poisson solver: 1 for FFT on level 0 & Multigrid on other levels, 0 for Multigrid on all levels
  * \param[in] do_single_precision_comms perform communications in single precision
  * \param[in] rel_ref_ratio mesh refinement ratio between levels (default: 1)
  * \param[in] post_phi_calculation perform a calculation per level directly after phi was calculated; required for embedded boundaries (default: none)