diff --git a/nerdtree_plugin/project.vim b/nerdtree_plugin/project.vim
index 861714e..a795b71 100644
--- a/nerdtree_plugin/project.vim
+++ b/nerdtree_plugin/project.vim
@@ -42,7 +42,7 @@ let g:loaded_nerdtree_project_plugin=1
 command! -nargs=1 NERDTreeProjectSave call g:NERDTreeProject.Add(<q-args>, b:NERDTree)
 command! -nargs=1 -complete=customlist,NERDTreeCompleteProjectNames NERDTreeProjectLoad call g:NERDTreeProject.Open(<q-args>)
 command! -nargs=1 -complete=customlist,NERDTreeCompleteProjectNames NERDTreeProjectRm call g:NERDTreeProject.Remove(<q-args>)
-command! -nargs=0 -complete=customlist,NERDTreeCompleteProjectNames NERDTreeProjectLoadFromCWD call g:NERDTreeProject.LoadFromCWD()
+command! -nargs=? -complete=customlist,NERDTreeCompleteProjectNames NERDTreeProjectLoadFromCWD call g:NERDTreeProject.LoadFromCWD()
 
 function! NERDTreeCompleteProjectNames(A,L,P) abort
     if empty(s:Project.All())