1 files changed, 1 insertions, 1 deletions
diff --git a/buffer.c b/buffer.c
index 5108429..2952767 100644
--- a/buffer.c
+++ b/buffer.c
@@ -906,7 +906,7 @@ buffer_list_free (struct buffer_list *ol)
 bool
 buffer_list_defined (const struct buffer_list *ol)
 {
-  return ol->head != NULL;
+  return ol && ol->head != NULL;
 }
 
 void