diff --git a/cuburn/output.py b/cuburn/output.py
index e17a892..53d21fc 100644
--- a/cuburn/output.py
+++ b/cuburn/output.py
@@ -124,13 +124,13 @@ class X264Output(Output, ClsMod):
       { 'normal': '--profile high444 --level 4.2'
       , '': ''
       })
-    base = ('x264 --no-progress --input-depth 16 --sync-lookahead 0 '
-            '--rc-lookahead 5 --muxer raw -o - - --log-level debug ')
+    base = ('--no-progress --input-depth 16 --sync-lookahead 0 '
+            '--rc-lookahead 5 --muxer raw -o - - --log-level debug')
 
     def __init__(self, profile='normal', csp='i444', crf=15,
-                 x264opts='', alpha=False):
+                 command='x264', x264opts='', alpha=False):
         super(X264Output, self).__init__()
-        self.args = ' '.join([self.base, self.profiles[profile],
+        self.args = ' '.join([command, self.base, self.profiles[profile],
                               '--crf', str(crf), x264opts]).split()
         self.alpha = alpha
         self.csp = csp