typo in Schema Datatypes draft

3.2.9 binary
[Definition:] binary represents arbitrary binary data. The value space of
binary is the set of finite sequences of binary octets. 
Constraint: encoding required for binary 
It is an error for binary to be used directly in a schema. Only datatypes
that are derived from binary by specify a value for encoding can be used in
a schema. 

In the last sentence change "by specify" to "by specifying".