diff --git a/src/kernel/alliance.c b/src/kernel/alliance.c
index 121e118c7..7a65c4db5 100644
--- a/src/kernel/alliance.c
+++ b/src/kernel/alliance.c
@@ -288,14 +288,12 @@ static void perform_join(void)
 static syntaxtree * build_syntax(void) {
     syntaxtree *slang, *stree = stree_create();
     for (slang = stree; slang; slang = slang->next) {
-        struct tnode *leaf = 0;
-        add_command(&leaf, LOC(slang->lang, alliance_kwd[ALLIANCE_KICK]), &cmd_kick);
-        add_command(&leaf, LOC(slang->lang, alliance_kwd[ALLIANCE_LEAVE]), &cmd_leave);
-        add_command(&leaf, LOC(slang->lang, alliance_kwd[ALLIANCE_TRANSFER]), &cmd_transfer);
-        add_command(&leaf, LOC(slang->lang, alliance_kwd[ALLIANCE_NEW]), &cmd_new);
-        add_command(&leaf, LOC(slang->lang, alliance_kwd[ALLIANCE_INVITE]), &cmd_invite);
-        add_command(&leaf, LOC(slang->lang, alliance_kwd[ALLIANCE_JOIN]), &cmd_join);
-        slang->root = leaf;
+        stree_add(slang, LOC(slang->lang, alliance_kwd[ALLIANCE_KICK]), &cmd_kick);
+        stree_add(slang, LOC(slang->lang, alliance_kwd[ALLIANCE_LEAVE]), &cmd_leave);
+        stree_add(slang, LOC(slang->lang, alliance_kwd[ALLIANCE_TRANSFER]), &cmd_transfer);
+        stree_add(slang, LOC(slang->lang, alliance_kwd[ALLIANCE_NEW]), &cmd_new);
+        stree_add(slang, LOC(slang->lang, alliance_kwd[ALLIANCE_INVITE]), &cmd_invite);
+        stree_add(slang, LOC(slang->lang, alliance_kwd[ALLIANCE_JOIN]), &cmd_join);
     }
     return stree;
 }