diff --git a/src/mesh_gravity.c b/src/mesh_gravity.c
index cee9d1828adecde7466a000d7a7369697b32cf59..ce3d15394ebb0e2418e491d9ef9f3a85687bb3ae 100644
--- a/src/mesh_gravity.c
+++ b/src/mesh_gravity.c
@@ -702,8 +702,8 @@ void pm_mesh_struct_restore(struct pm_mesh* mesh, FILE* stream) {
 #ifdef HAVE_FFTW
     const int N = mesh->N;
 
-   /* Initialise the thread-parallel FFTW version */
-   if (N >= 64) {
+    /* Initialise the thread-parallel FFTW version */
+    if (N >= 64) {
       fftw_init_threads();
       fftw_plan_with_nthreads(mesh->nr_threads);
     }