Definitely a faulty memory. Deuteronomy is in the canon of Scripture of both the Jews and of all Christian confessions
The canon accepted by Orthodox Church contains all the books accepted by the Latin church (on the basis of the Ecumenical Councils and the Council of Carthage and reiterated by the Latins at Trent after Luther threw out the books of the Old Testament not found in the Masorete (shortened by Christ-denying rabbis at Jamnia from the longer Jewish canon found in the LXX).
The Orthodox also accept as Scripture, 3rd and 4th Maccabees, the Prayer of Manassah, and the 151st Psalm. (While regarded as Scripture, neither the 151st Psalm, nor the Apocalypse of St. John are ever read during services of the Orthodox Church.)
The KJV includes all the books of the Latin canon, but those rejected by Luther and the Christ-denying rabbis of Jamnia are usually not printed anymore when protestant printing houses print the KJV. Anglican printing houses usually put the balance of the Old Testament as an appendix, citing the 39 Articles of Religion's description of them as being read for 'instruction in life and morals' but not used to establish doctrine. There are also some disagreements about book names. I've forgotten which Western system calls books 1st and 2nd Chronicles and 1st and 2nd Kings, and which calls the same books 1st, 2nd, 3rd, and 4th Kings, but they are the same books.
The Ethiopian monophysites have an even longer canon, considering all books accepted by the Orthodox as Scripture, together with the Shepherd of Hermas and the First and Second Epistles of St. Clement, Pope of Rome (go figure).
There, more than you ever wanted to know about the content of the Christian canon of Scripture.
Thanks very much!