diff --git a/src/aeso_ast_to_icode.erl b/src/aeso_ast_to_icode.erl
index d1d5a36..38bba87 100644
--- a/src/aeso_ast_to_icode.erl
+++ b/src/aeso_ast_to_icode.erl
@@ -273,7 +273,7 @@ ast_body(?qid_app(["AENS", "claim"], Args, _, _), Icode) ->
     {Sign, [Addr, Name, Salt, NameFee]} = get_signature_arg(Args),
     prim_call(?PRIM_CALL_AENS_CLAIM, #integer{value = 0},
               [ast_body(Addr, Icode), ast_body(Name, Icode), ast_body(Salt, Icode), ast_body(NameFee, Icode), ast_body(Sign, Icode)],
-              [word, string, word, sign_t(), word], {tuple, []});
+              [word, string, word, word, sign_t()], {tuple, []});
 
 ast_body(?qid_app(["AENS", "transfer"], Args, _, _), Icode) ->
     {Sign, [FromAddr, ToAddr, Name]} = get_signature_arg(Args),