diff --git a/lib/erl/include/thrift_constants.hrl b/lib/erl/include/thrift_constants.hrl
index dbfaaf6..7b724a0 100644
--- a/lib/erl/include/thrift_constants.hrl
+++ b/lib/erl/include/thrift_constants.hrl
@@ -22,6 +22,7 @@
 -define(tType_VOID, 1).
 -define(tType_BOOL, 2).
 -define(tType_BYTE, 3).
+-define(tType_I8, 3).
 -define(tType_DOUBLE, 4).
 -define(tType_I16, 6).
 -define(tType_I32, 8).
diff --git a/lib/erl/src/thrift_json_protocol.erl b/lib/erl/src/thrift_json_protocol.erl
index 8b9e613..c5f3da8 100644
--- a/lib/erl/src/thrift_json_protocol.erl
+++ b/lib/erl/src/thrift_json_protocol.erl
@@ -56,6 +56,7 @@
 typeid_to_json(?tType_BOOL) -> "tf";
 typeid_to_json(?tType_BYTE) -> "i8";
 typeid_to_json(?tType_DOUBLE) -> "dbl";
+typeid_to_json(?tType_I8) -> "i8";
 typeid_to_json(?tType_I16) -> "i16";
 typeid_to_json(?tType_I32) -> "i32";
 typeid_to_json(?tType_I64) -> "i64";
@@ -66,8 +67,8 @@
 typeid_to_json(?tType_LIST) -> "lst".
 
 json_to_typeid("tf") -> ?tType_BOOL;
-json_to_typeid("i8") -> ?tType_BYTE;
 json_to_typeid("dbl") -> ?tType_DOUBLE;
+json_to_typeid("i8") -> ?tType_I8;
 json_to_typeid("i16") -> ?tType_I16;
 json_to_typeid("i32") -> ?tType_I32;
 json_to_typeid("i64") -> ?tType_I64;
diff --git a/lib/erl/src/thrift_protocol.erl b/lib/erl/src/thrift_protocol.erl
index c6db46d..b63f951 100644
--- a/lib/erl/src/thrift_protocol.erl
+++ b/lib/erl/src/thrift_protocol.erl
@@ -63,8 +63,8 @@
 typeid_to_atom(?tType_STOP) -> field_stop;
 typeid_to_atom(?tType_VOID) -> void;
 typeid_to_atom(?tType_BOOL) -> bool;
-typeid_to_atom(?tType_BYTE) -> byte;
 typeid_to_atom(?tType_DOUBLE) -> double;
+typeid_to_atom(?tType_I8) -> byte;
 typeid_to_atom(?tType_I16) -> i16;
 typeid_to_atom(?tType_I32) -> i32;
 typeid_to_atom(?tType_I64) -> i64;
@@ -76,8 +76,9 @@
 
 term_to_typeid(void) -> ?tType_VOID;
 term_to_typeid(bool) -> ?tType_BOOL;
-term_to_typeid(byte) -> ?tType_BYTE;
+term_to_typeid(byte) -> ?tType_I8;
 term_to_typeid(double) -> ?tType_DOUBLE;
+term_to_typeid(i8) -> ?tType_I8;
 term_to_typeid(i16) -> ?tType_I16;
 term_to_typeid(i32) -> ?tType_I32;
 term_to_typeid(i64) -> ?tType_I64;