diff --git a/hg-fast-export.py b/hg-fast-export.py
index 54e6868..6bd2e4c 100755
--- a/hg-fast-export.py
+++ b/hg-fast-export.py
@@ -362,9 +362,9 @@ if __name__=='__main__':
   if options.max!=None: m=options.max
 
   if options.marksfile==None: bail(parser,'--marks')
-  if options.marksfile==None: bail(parser,'--heads')
-  if options.marksfile==None: bail(parser,'--status')
-  if options.marksfile==None: bail(parser,'--repo')
+  if options.headsfile==None: bail(parser,'--heads')
+  if options.statusfile==None: bail(parser,'--status')
+  if options.repourl==None: bail(parser,'--repo')
 
   a={}
   if options.authorfile!=None: