diff --git a/fs/sandbox/sandboxfs.c b/fs/sandbox/sandboxfs.c
index 2703eed..cd10fd6 100644
--- a/fs/sandbox/sandboxfs.c
+++ b/fs/sandbox/sandboxfs.c
@@ -94,6 +94,7 @@ int sandbox_fs_ls(const char *dirname)
 		printf("%s %10lu %s\n", os_dirent_get_typename(node->type),
 		       node->size, node->name);
 	}
+	os_dirent_free(head);
 
 	return 0;
 }
diff --git a/include/os.h b/include/os.h
index 1782e50..049b248 100644
--- a/include/os.h
+++ b/include/os.h
@@ -215,9 +215,18 @@ struct os_dirent_node {
 int os_dirent_ls(const char *dirname, struct os_dirent_node **headp);
 
 /**
+ * Free directory list
+ *
+ * This frees a linked list containing a directory listing.
+ *
+ * @param node		Pointer to head of linked list
+ */
+void os_dirent_free(struct os_dirent_node *node);
+
+/**
  * Get the name of a directory entry type
  *
- * @param type		Type to cehck
+ * @param type		Type to check
  * @return string containing the name of that type, or "???" if none/invalid
  */
 const char *os_dirent_get_typename(enum os_dirent_t type);