diff --git a/plugin/NERD_tree.vim b/plugin/NERD_tree.vim
index 64e1c1e..d7dfb53 100644
--- a/plugin/NERD_tree.vim
+++ b/plugin/NERD_tree.vim
@@ -2104,7 +2104,12 @@ endfunction
 function! s:OpenFileNode(treenode)
     call s:PutCursorInTreeWin()
 
-    if s:ShouldSplitToOpen(winnr("#"))
+    "if the file is already open in this tab then just stick the cursor in it
+    let winnr = bufwinnr(a:treenode.path.StrForOS(0))
+    if winnr != -1
+        exec winnr . "wincmd w"
+
+    elseif s:ShouldSplitToOpen(winnr("#"))
         call s:OpenFileNodeSplit(a:treenode)
     else
         try