1 files changed, 1 insertions, 0 deletions

diff --git a/deque.c b/deque.c
index 36af05a..e019adc 100644
--- a/deque.c
+++ b/deque.c
@@ -49,6 +49,7 @@ deque_free(struct deque *d)
 
         // free the map itself
         free(d->map);
+        d->map = NULL;
 }
 
 static void