diff --git a/doc/thrift.bnf b/doc/thrift.bnf
index 60e757d..d16ec05 100644
--- a/doc/thrift.bnf
+++ b/doc/thrift.bnf
@@ -48,11 +48,11 @@
     <field-name> ::= STRING
 
     <field-type> ::= T_BOOL | T_BYTE | T_I8 | T_I16 | T_I32 | T_I64 | T_DOUBLE
-                     | T_STRING | T_STRUCT | T_MAP | T_SET | T_LIST
+                     | T_STRING | T_BINARY | T_STRUCT | T_MAP | T_SET | T_LIST
 
       <field-id> ::= I16
 
-    <field-data> ::= I8 | I16 | I32 | I64 | DOUBLE | STRING |
+    <field-data> ::= I8 | I16 | I32 | I64 | DOUBLE | STRING | BINARY
                      <struct> | <map> | <list> | <set>
 
            <map> ::= <map-begin> <field-datum>* <map-end>
diff --git a/doc/thrift.tex b/doc/thrift.tex
index 082be62..d20b737 100644
--- a/doc/thrift.tex
+++ b/doc/thrift.tex
@@ -163,6 +163,7 @@
 \item \texttt{i64} A 64-bit signed integer
 \item \texttt{double} A 64-bit floating point number
 \item \texttt{string} An encoding-agnostic text or binary string
+\item \texttt{binary} A byte array representation for blobs
 \end{itemize}
 
 Of particular note is the absence of unsigned integer types. Because these
diff --git a/tutorial/tutorial.thrift b/tutorial/tutorial.thrift
index bc199e4..2655bcb 100755
--- a/tutorial/tutorial.thrift
+++ b/tutorial/tutorial.thrift
@@ -21,6 +21,7 @@
  *  i64         Signed 64-bit integer
  *  double      64-bit floating point value
  *  string      String
+ *  binary      Blob (byte array)
  *  map<t1,t2>  Map from one type to another
  *  list<t1>    Ordered list of one type
  *  set<t1>     Set of unique elements of one type