Index: generic/include/adt/btree.h
===================================================================
--- generic/include/adt/btree.h	(revision 2a1fa51536bfc1c1cff6d27d507dc0e67b239201)
+++ generic/include/adt/btree.h	(revision a9ef68bfb5a4d2d85ccd7edf79d3fcc2f7c9d108)
@@ -84,6 +84,6 @@
 extern void *btree_search(btree_t *t, __native key, btree_node_t **leaf_node);
 
-extern btree_node_t *btree_node_left_sibling(btree_t *t, btree_node_t *node);
-extern btree_node_t *btree_node_right_sibling(btree_t *t, btree_node_t *node);
+extern btree_node_t *btree_leaf_node_left_neighbour(btree_t *t, btree_node_t *node);
+extern btree_node_t *btree_leaf_node_right_neighbour(btree_t *t, btree_node_t *node);
 
 extern void btree_print(btree_t *t);