diff --git a/README.md b/README.md
index e291de4f..3ff36e81 100644
--- a/README.md
+++ b/README.md
@@ -95,10 +95,12 @@ Data Format
     [true, 1.0]                -> [true, 1.0]    -> [true, 1.0]
     {[]}                       -> {}             -> {[]}
     {[{foo, bar}]}             -> {"foo": "bar"} -> {[{<<"foo">>, <<"bar">>}]}
+    {[{123, bar}]}             -> {"123": "bar"} -> {[{<<"123">>, <<"bar">>}]}
     {[{<<"foo">>, <<"bar">>}]} -> {"foo": "bar"} -> {[{<<"foo">>, <<"bar">>}]}
     #{<<"foo">> => <<"bar">>}  -> {"foo": "bar"} -> #{<<"foo">> => <<"bar">>}
+    #{123 => <<"bar">>}        -> {"123": "bar"} -> #{<<"123">> => <<"bar">>}
 
-N.B. The last entry in this table is only valid for VM's that support
+N.B. The last two entries in this table are only valid for VM's that support
 the `maps` data type (i.e., 17.0 and newer) and client code must pass
 the `return_maps` option to `jiffy:decode/2`.
 
diff --git a/c_src/encoder.c b/c_src/encoder.c
index e864777c..0a9ad48a 100644
--- a/c_src/encoder.c
+++ b/c_src/encoder.c
@@ -814,9 +814,24 @@ encode_iter(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
                 ret = enc_obj_error(e, "invalid_object_member_arity", item);
                 goto done;
             }
-            if(!enc_string(e, tuple[0])) {
-                ret = enc_obj_error(e, "invalid_object_member_key", tuple[0]);
-                goto done;
+            if(enif_get_int64(env, tuple[0], &lval)) {
+                if (!enc_char(e, '"')) {
+                    ret = enc_error(e, "internal_error");
+                    goto done;
+                }
+                if(!enc_long(e, lval)) {
+                    ret = enc_obj_error(e, "invalid_object_member_key", tuple[0]);
+                    goto done;
+                }
+                if (!enc_char(e, '"')) {
+                    ret = enc_error(e, "internal_error");
+                    goto done;
+                }
+            } else {
+                if(!enc_string(e, tuple[0])) {
+                    ret = enc_obj_error(e, "invalid_object_member_key", tuple[0]);
+                    goto done;
+                }
             }
             if(!enc_colon(e)) {
                 ret = enc_error(e, "internal_error");
diff --git a/test/jiffy_07_compound_tests.erl b/test/jiffy_07_compound_tests.erl
index 7a811db7..3eadf19c 100644
--- a/test/jiffy_07_compound_tests.erl
+++ b/test/jiffy_07_compound_tests.erl
@@ -9,7 +9,8 @@
 
 
 compound_success_test_() ->
-    [gen(ok, Case) || Case <- cases(ok)].
+    [gen(ok, Case) || Case <- cases(ok)] ++ 
+    [gen(special_encoding, Case) || Case <- cases(special_encoding)].
 
 
 compound_failure_test_() ->
@@ -24,6 +25,11 @@ gen(ok, {J1, E, J2}) ->
         {"Encode", ?_assertEqual(J2, enc(E))}
     ]};
 
+gen(special_encoding, {J, E}) ->
+    {msg("~s", [J]), [
+        {"Encode", ?_assertEqual(J, enc(E))}
+    ]};
+
 gen(error, J) ->
     {msg("Error: ~s", [J]), [
         ?_assertThrow({error, _}, dec(J))
@@ -53,6 +59,11 @@ cases(ok) ->
         }
     ];
 
+cases(special_encoding) ->
+    [
+        {<<"{\"123\":\"foo\"}">>, {[{123, <<"foo">>}]}}
+    ];
+
 cases(error) ->
     [
         <<"[{}">>,
diff --git a/test/jiffy_12_error_tests.erl b/test/jiffy_12_error_tests.erl
index a7d4ed62..93471d79 100644
--- a/test/jiffy_12_error_tests.erl
+++ b/test/jiffy_12_error_tests.erl
@@ -71,13 +71,10 @@ enc_invalid_object_member_key_test_() ->
     E1 = {1, true},
     {"invalid_object_member_key", [
         {"Bad string", enc_error(Type, <<143>>, {[{<<143>>, true}]})},
-        {"Basic", enc_error(Type, 1, {[{1, true}]})},
         {"Basic", enc_error(Type, [1], {[{[1], true}]})},
         {"Basic", enc_error(Type, {[{foo,bar}]}, {[{{[{foo,bar}]}, true}]})},
         {"Second", enc_error(Type, 1, {[{bar, baz}, E1]})},
-        {"Nested", enc_error(Type, 1, {[{bar,{[E1]}}]})},
         {"Nested", enc_error(Type, 1, {[{bar,{[{baz, 1}, E1]}}]})},
-        {"In List", enc_error(Type, 1, [{[E1]}])},
         {"In List", enc_error(Type, 1, [{[{bang, true}, E1]}])}
     ]}.