diff --git a/lib/nerdtree/creator.vim b/lib/nerdtree/creator.vim
index 8dd6c2c..952811c 100644
--- a/lib/nerdtree/creator.vim
+++ b/lib/nerdtree/creator.vim
@@ -96,8 +96,7 @@ function! s:Creator.createWindowTree(dir)
 
     "we need a unique name for each window tree buffer to ensure they are
     "all independent
-    let prefix = get(g:, "NERDTreeCreatePrefix", "silent")
-    exec prefix . " edit " . self._nextBufferName()
+    exec g:NERDTreeCreatePrefix . " edit " . self._nextBufferName()
 
     call self._createNERDTree(path, "window")
     let b:NERDTree._previousBuf = bufnr(previousBuf)
diff --git a/plugin/NERD_tree.vim b/plugin/NERD_tree.vim
index 8ce0a2b..0bcfe96 100644
--- a/plugin/NERD_tree.vim
+++ b/plugin/NERD_tree.vim
@@ -48,6 +48,7 @@ call s:initVariable("g:NERDTreeAutoCenterThreshold", 3)
 call s:initVariable("g:NERDTreeCaseSensitiveSort", 0)
 call s:initVariable("g:NERDTreeSortHiddenFirst", 1)
 call s:initVariable("g:NERDTreeChDirMode", 0)
+call s:initVariable("g:NERDTreeCreatePrefix", "silent")
 call s:initVariable("g:NERDTreeMinimalUI", 0)
 if !exists("g:NERDTreeIgnore")
     let g:NERDTreeIgnore = ['\~$']