1 files changed, 5 insertions, 1 deletions
diff --git a/src/Faces.c b/src/Faces.c
index 844dfc2..b67643d 100644
--- a/src/Faces.c
+++ b/src/Faces.c
@@ -96,7 +96,7 @@ SymBase_SymmetryRegisterFaces (CCTK_INT const sym_table,
   {
     return -3;                  /* illegal argument */
   }
-  if (!symmetry_zone_width)
+  if (!new_symmetry_zone_width)
   {
     return -4;                  /* illegal argument */
   }
@@ -129,6 +129,10 @@ SymBase_SymmetryRegisterFaces (CCTK_INT const sym_table,
         return -5;              /* The face is already taken */
       }
       symmetry_handle[face] = sym_handle;
+      if (new_symmetry_zone_width[face] > 100)
+      {
+        CCTK_WARN (0, "Tried to register a symmetry face with a symmetry zone width >100 -- this looks like an error");
+      }
       symmetry_zone_width[face] = new_symmetry_zone_width[face];
     }
   }