diff --git a/plugin/fugitive.vim b/plugin/fugitive.vim
index 0eba643..77cdf82 100644
--- a/plugin/fugitive.vim
+++ b/plugin/fugitive.vim
@@ -933,7 +933,7 @@ function! s:Commit(args) abort
       let error = get(errors,-2,get(errors,-1,'!'))
       if error =~# '\<false''\=\.$'
         let args = a:args
-        let args = s:gsub(args,'%(%(^| )-- )@<!%(^| )@<=%(-[se]|--edit|--interactive)%($| )','')
+        let args = s:gsub(args,'%(%(^| )-- )@<!%(^| )@<=%(-[es]|--edit|--interactive|--signoff)%($| )','')
         let args = s:gsub(args,'%(%(^| )-- )@<!%(^| )@<=%(-F|--file|-m|--message)%(\s+|\=)%(''[^'']*''|"%(\\.|[^"])*"|\\.|\S)*','')
         let args = s:gsub(args,'%(^| )@<=[%#]%(:\w)*','\=expand(submatch(0))')
         let args = '-F '.s:shellesc(msgfile).' '.args