1 files changed, 3 insertions, 7 deletions
diff --git a/src/CopyBoundary.c b/src/CopyBoundary.c
index 278482f..e8a60b2 100644
--- a/src/CopyBoundary.c
+++ b/src/CopyBoundary.c
@@ -181,15 +181,11 @@ int BndCopy(const cGH *GH, int num_vars, int *vars, int *faces, int *widths,
     }
 
     /* Determine boundary width on all faces */
-    /* allocate memory for buffer */
+    /* (re-)allocate memory for buffer */
     gdim = CCTK_GroupDimI(gi);
-    if (!width_alldirs)
+    if (gdim > max_gdim)
     {
-      width_alldirs = (int *) malloc(2*gdim*sizeof(int));
-      max_gdim = gdim;
-    } else if (gdim > max_gdim)
-    {
-      width_alldirs = realloc(width_alldirs, gdim*sizeof(int));
+      width_alldirs = realloc(width_alldirs, 2*gdim*sizeof(int));
       max_gdim = gdim;
     }