+# check -fixtype
+cat >"$expected" <<EOF
+To: recipient@example.com
+From: sender@example.com
+Subject: mhfixmsg with incorrect Content-Type
+MIME-Version: 1.0
+Content-Type: multipart/mixed; boundary="----- =_aaaaaaaaaa0"
+
+------- =_aaaaaaaaaa0
+Content-Type: text/plain; name="plaintext.txt"
+
+this is plain text
+
+------- =_aaaaaaaaaa0--
+EOF
+
+cat >`mhpath new` <<EOF
+To: recipient@example.com
+From: sender@example.com
+Subject: mhfixmsg with incorrect Content-Type
+MIME-Version: 1.0
+Content-Type: multipart/mixed; boundary="----- =_aaaaaaaaaa0"
+
+------- =_aaaaaaaaaa0
+Content-Type: application/octet-stream; name="plaintext.txt"
+
+this is plain text
+
+------- =_aaaaaaaaaa0--
+EOF
+
+mhfixmsg -fixtype application/octet-stream last
+check "$expected" `mhpath last`
+
+