1 files changed, 6 insertions, 0 deletions
diff --git a/src/apply.c b/src/apply.c
index 20f8993..6170234 100644
--- a/src/apply.c
+++ b/src/apply.c
@@ -591,6 +591,12 @@ ReflectionSymmetry_Apply (CCTK_ARGUMENTS)
     CCTK_WARN (0, "Internal error in Boundary_SelectedGVs");
   }
   
+  if (nvars == 0)
+  {
+    /* Nothing to do */
+    return;
+  }
+  
   indices = malloc (nvars * sizeof *indices);
   if (! indices)
   {