diff --git a/fsl/wrappers/flirt.py b/fsl/wrappers/flirt.py
index 3bce5b0ff628fd2e752982961203fb2939ab808c..f637affb6860694a5cdb6c556d7daae7472123dd 100644
--- a/fsl/wrappers/flirt.py
+++ b/fsl/wrappers/flirt.py
@@ -91,7 +91,7 @@ def concatxfm(inmat1, inmat2, outmat):
 
 
 @wutils.fileOrImage('infile', 'out', 'reffile')
-@wutils.fileOrArary('init')
+@wutils.fileOrArray('init')
 def mcflirt(infile, **kwargs):
     """Wrapper around the ``mcflirt`` command."""