diff --git a/src/hz.erl b/src/hz.erl
index 66699c0..a10cd9c 100644
--- a/src/hz.erl
+++ b/src/hz.erl
@@ -1189,7 +1189,7 @@ read_aci(Path) ->
 
 -spec contract_call(CallerID, AACI, ConID, Fun, Args) -> Result
     when CallerID :: unicode:chardata(),
-         AACI     :: aaci(),
+         AACI     :: aaci() | {aaci, Label :: term()},
          ConID    :: unicode:chardata(),
          Fun      :: string(),
          Args     :: [string()],
@@ -1224,7 +1224,7 @@ contract_call(CallerID, AACI, ConID, Fun, Args) ->
 -spec contract_call(CallerID, Gas, AACI, ConID, Fun, Args) -> Result
     when CallerID :: unicode:chardata(),
          Gas      :: pos_integer(),
-         AACI     :: aaci(),
+         AACI     :: aaci() | {aaci, Label :: term()},
          ConID    :: unicode:chardata(),
          Fun      :: string(),
          Args     :: [string()],
@@ -1262,7 +1262,7 @@ contract_call(CallerID, Gas, AACI, ConID, Fun, Args) ->
          GasPrice :: pos_integer(),
          Amount   :: non_neg_integer(),
          TTL      :: non_neg_integer(),
-         AACI     :: aaci(),
+         AACI     :: aaci() | {aaci, Label :: term()},
          ConID    :: unicode:chardata(),
          Fun      :: string(),
          Args     :: [string()],
@@ -2233,7 +2233,7 @@ lookup_aaci(Label) ->
 
 
 -spec aaci_lookup_spec(AACI, Fun) -> {ok, Type} | {error, Reason}
-    when AACI   :: aaci(),
+    when AACI   :: aaci() | {aaci, Label :: term()},
          Fun    :: binary() | string(),
          Type   :: {term(), term()}, % FIXME
          Reason :: bad_fun_name | aaci_not_found.
@@ -2243,15 +2243,15 @@ lookup_aaci(Label) ->
 %% prepare_contract/1. This type information, particularly the return type, is
 %% useful for calling decode_bytearray/2.
 
-aaci_lookup_spec({aaci, Label}, Fun) ->
-    case hz_man:lookup_aaci(Label) of
-        {ok, AACI} -> aaci_lookup_spec(AACI, Fun);
-        error      -> {error, aaci_not_found}
-    end;
 aaci_lookup_spec({aaci, _, FunDefs, _}, Fun) ->
     case maps:find(Fun, FunDefs) of
         A = {ok, _} -> A;
         error       -> {error, bad_fun_name}
+    end;
+aaci_lookup_spec({aaci, Label}, Fun) ->
+    case hz_man:lookup_aaci(Label) of
+        {ok, AACI} -> aaci_lookup_spec(AACI, Fun);
+        error      -> {error, aaci_not_found}
     end.
 
 -spec min_gas_price() -> integer().
@@ -2278,15 +2278,15 @@ min_gas() ->
     200000.
 
 
-encode_call_data({aaci, Label}, Fun, Args) ->
-    case hz_man:lookup_aaci(Label) of
-        {ok, AACI} -> encode_call_data(AACI, Fun, Args);
-        error      -> {error, aaci_not_found}
-    end;
 encode_call_data({aaci, _ContractName, FunDefs, _TypeDefs}, Fun, Args) ->
     case maps:find(Fun, FunDefs) of
         {ok, {ArgDef, _ResultDef}} -> encode_call_data2(ArgDef, Fun, Args);
         error                      -> {error, bad_fun_name}
+    end;
+encode_call_data({aaci, Label}, Fun, Args) ->
+    case hz_man:lookup_aaci(Label) of
+        {ok, AACI} -> encode_call_data(AACI, Fun, Args);
+        error      -> {error, aaci_not_found}
     end.
 
 encode_call_data2(ArgDef, Fun, Args) ->