diff --git a/include/eosio/to_json.hpp b/include/eosio/to_json.hpp
index 3c62ef9..2ed7a47 100644
--- a/include/eosio/to_json.hpp
+++ b/include/eosio/to_json.hpp
@@ -51,6 +51,16 @@ void to_json(std::string_view sv, S& stream) {
             stream.write("\\\"", 2);
          } else if (*begin == '\\') {
             stream.write("\\\\", 2);
+         } else if (*begin == '\b') {
+            stream.write("\\b", 2);
+         } else if (*begin == '\f') {
+            stream.write("\\f", 2);
+         } else if (*begin == '\n') {
+            stream.write("\\n", 2);
+         } else if (*begin == '\r') {
+            stream.write("\\r", 2);
+         } else if (*begin == '\t') {
+            stream.write("\\t", 2);
          } else {
             stream.write("\\u00", 4);
             stream.write(hex_digits[(unsigned char)(*begin) >> 4]);
diff --git a/src/test.cpp b/src/test.cpp
index ad7f227..64b232f 100644
--- a/src/test.cpp
+++ b/src/test.cpp
@@ -570,7 +570,9 @@ void check_types() {
     check_type(context, 0, "string", R"("' + '*'.repeat(128) + '")");
     check_type(context, 0, "string", R"("\u0000  这是一个测试  Это тест  هذا اختبار 👍")");
     check(abieos_bin_to_json(context, 0, "string", "\x11invalid utf8: \xff\xfe\xfd", 18) == std::string(R"("invalid utf8: ???")"), "invalid utf8");
-    check(abieos_bin_to_json(context, 0, "string", "\4\xe8\xbf\x99\n", 5) == std::string("\"\xe8\xbf\x99\\u000A\""), "escaping");
+    check(abieos_bin_to_json(context, 0, "string", "\x08\xe8\xbf\x99\b\f\n\r\t", 9) ==
+              std::string("\"\xe8\xbf\x99\\b\\f\\n\\r\\t\""),
+          "escaping");
     check_error(context, "Stream overrun", [&] { return abieos_hex_to_json(context, 0, "string", "01"); });
     check_type(context, 0, "checksum160", R"("0000000000000000000000000000000000000000")");
     check_type(context, 0, "checksum160", R"("123456789ABCDEF01234567890ABCDEF70123456")");