1 files changed, 1 insertions, 1 deletions
diff --git a/ffi.c b/ffi.c
index f9a4ebc3..049c16d1 100644
--- a/ffi.c
+++ b/ffi.c
@@ -381,7 +381,7 @@ static mem_t *ffi_fixed_alloc(struct txr_ffi_type *tft, val obj, val self)
 
 static mem_t *ffi_varray_alloc(struct txr_ffi_type *tft, val obj, val self)
 {
-  cnum len = c_num(length(obj));
+  cnum len = c_num(length(obj)) + tft->null_term;
   val eltype = tft->eltype;
   struct txr_ffi_type *etft = ffi_type_struct(eltype);
   return chk_calloc(len, etft->size);