diff --git a/src/jsx_encoder.erl b/src/jsx_encoder.erl
index 2ca2a0c..92a2281 100644
--- a/src/jsx_encoder.erl
+++ b/src/jsx_encoder.erl
@@ -73,23 +73,23 @@ value(Term, Handler, Opts) -> ?error([Term, Handler, Opts]).
 
 
 list_or_object([Term|Rest], {Handler, State}, Opts) ->
-	case pre_encode(Term, Opts) of
-		{K, V} ->
-			object([{K, V}|Rest], {Handler, Handler:handle_event(start_object, State)}, Opts)
-		; T ->
-			list([T|Rest], {Handler, Handler:handle_event(start_array, State)}, Opts)
-	end.
+    case pre_encode(Term, Opts) of
+        {K, V} ->
+            object([{K, V}|Rest], {Handler, Handler:handle_event(start_object, State)}, Opts)
+        ; T ->
+            list([T|Rest], {Handler, Handler:handle_event(start_array, State)}, Opts)
+    end.
 
 
 object([{Key, Value}, Next|Rest], {Handler, State}, Opts) when is_atom(Key); is_binary(Key) ->
     V = pre_encode(Value, Opts),
-	object(
+    object(
         [pre_encode(Next, Opts)|Rest],
         {
             Handler,
             value(
-				V,
-				{Handler, Handler:handle_event({key, clean_string(fix_key(Key), Opts)}, State)},
+                V,
+                {Handler, Handler:handle_event({key, clean_string(fix_key(Key), Opts)}, State)},
                 Opts
             )
         },
@@ -331,15 +331,15 @@ pre_encoders_test_() ->
                 end_json
             ]
         )},
-		{"pre_encode list", ?_assertEqual(
-			encode([1,2,3], [{pre_encode, fun(X) when is_integer(X) -> X + 1; (V) -> V end}]),
-			[
-				start_array,
-					{integer, 2}, {integer, 3}, {integer, 4},
-				end_array,
-				end_json
-			]
-		)}
+        {"pre_encode list", ?_assertEqual(
+            encode([1,2,3], [{pre_encode, fun(X) when is_integer(X) -> X + 1; (V) -> V end}]),
+            [
+                start_array,
+                    {integer, 2}, {integer, 3}, {integer, 4},
+                end_array,
+            end_json
+            ]
+        )}
     ].