diff --git a/src/aeb_fate_abi.erl b/src/aeb_fate_abi.erl
index fc19b0a..bd6d305 100644
--- a/src/aeb_fate_abi.erl
+++ b/src/aeb_fate_abi.erl
@@ -10,8 +10,9 @@
 -module(aeb_fate_abi).
 
 -export([ create_calldata/2
-        , function_name_from_function_hash/2
-        , get_function_hash_from_calldata/1 ]).
+        , get_function_hash_from_calldata/1
+        , get_function_name_from_function_hash/2
+        , get_function_type_from_function_hash/2 ]).
 
 -include("../include/aeb_fate_data.hrl").
 
@@ -26,11 +27,11 @@ create_calldata(FunName, Args) ->
            aeb_fate_data:make_tuple({FunctionId,
                                      aeb_fate_data:make_tuple(list_to_tuple(Args))}))}.
 
--spec function_name_from_function_hash(any(), aeb_fate_code:fcode()) ->
+-spec get_function_name_from_function_hash(binary(), aeb_fate_code:fcode()) ->
     {ok, term()} | {error, term()}.
-function_name_from_function_hash(<<SymbolHash:4/binary, _:28/binary>>, FateCode) ->
-    function_name_from_function_hash(SymbolHash, FateCode);
-function_name_from_function_hash(SymbolHash = <<_:4/binary>>, FateCode) ->
+get_function_name_from_function_hash(<<SymbolHash:4/binary, _:28/binary>>, FateCode) ->
+    get_function_name_from_function_hash(SymbolHash, FateCode);
+get_function_name_from_function_hash(SymbolHash = <<_:4/binary>>, FateCode) ->
     Symbols = aeb_fate_code:symbols(FateCode),
     case maps:get(SymbolHash, Symbols, undefined) of
         undefined -> {error, no_function_matching_function_hash};
@@ -46,3 +47,16 @@ get_function_hash_from_calldata(CallData) ->
     catch _:_ ->
         {error, bad_calldata}
     end.
+
+-spec get_function_type_from_function_hash(binary(), aeb_fate_code:fcode()) ->
+    {ok, term()} | {error, term()}.
+get_function_type_from_function_hash(<<SymbolHash:4/binary, _:28/binary>>, FateCode) ->
+    get_function_type_from_function_hash(SymbolHash, FateCode);
+get_function_type_from_function_hash(SymbolHash, FateCode) ->
+    Functions = aeb_fate_code:functions(FateCode),
+    case maps:get(SymbolHash, Functions, undefined) of
+        undefined ->
+            {error, no_function_matching_function_hash};
+        {{ArgTypes, RetType}, _Code} ->
+            {ok, ArgTypes, RetType}
+    end.
diff --git a/src/aeb_fate_code.erl b/src/aeb_fate_code.erl
index d5289d9..5d010bc 100644
--- a/src/aeb_fate_code.erl
+++ b/src/aeb_fate_code.erl
@@ -27,7 +27,7 @@
 -include("../include/aeb_fate_data.hrl").
 
 -ifdef(EQC).
--export([update_annotations/2
+-export([ update_annotations/2
         , update_functions/2
         , update_symbols/2]).
 -endif.