diff --git a/fstree.c b/fstree.c
index ba0da9d..f377453 100644
--- a/fstree.c
+++ b/fstree.c
@@ -75,6 +75,7 @@ static struct node *read_fstree(const char *dirname)
 		free(tmpnam);
 	}
 
+	closedir(d);
 	return tree;
 }