diff --git a/src/jsx_decoder.hrl b/src/jsx_decoder.hrl
index 686ea7b..1720bec 100644
--- a/src/jsx_decoder.hrl
+++ b/src/jsx_decoder.hrl
@@ -709,7 +709,7 @@ low_surrogate(<<D/?utfx, Rest/binary>>, Stack, Opts, String, [C, B, A], High)
                             string(Rest,
                                 Stack,
                                 Opts,
-                                <<String/binary, 16#fffd/utf8, 16#fffd/utf8>>
+                                <<String/binary, 16#fffd/utf8>>
                             )
                         ; false ->    
                             {error, {badjson, <<D/?utfx, Rest/binary>>}}
diff --git a/test/cases/escaped_noncharacter_ext_replaced.test b/test/cases/escaped_noncharacter_ext_replaced.test
index c2741f7..0a740b6 100644
--- a/test/cases/escaped_noncharacter_ext_replaced.test
+++ b/test/cases/escaped_noncharacter_ext_replaced.test
@@ -1,4 +1,4 @@
 {name, "escaped noncharacter (extended)"}.
-{jsx, [{string, <<16#fffd/utf8, 16#fffd/utf8>>}, end_json]}.
+{jsx, [{string, <<16#fffd/utf8>>}, end_json]}.
 {json, "escaped_noncharacter_ext.json"}.
 {jsx_flags, [loose_unicode]}.
\ No newline at end of file