1 files changed, 2 insertions, 1 deletions

diff --git a/bitmap.c b/bitmap.c
index f95032250..3d7aa1379 100644
--- a/bitmap.c
+++ b/bitmap.c
@@ -53,8 +53,9 @@ void
 bitmap_free(struct bitmap *b)
 {
         if (b != NULL && b->d != NULL) {
-                explicit_bzero(b->d, b->len);
+                bitmap_zero(b);
                 free(b->d);
+                b->d = NULL;
         }
         free(b);
 }