diff --git a/plugin/delete-hidden-buffers.vim b/plugin/delete-hidden-buffers.vim
index fd57711..d27ec11 100644
--- a/plugin/delete-hidden-buffers.vim
+++ b/plugin/delete-hidden-buffers.vim
@@ -1,10 +1,8 @@
-if !exists("*DeleteHiddenBuffers") " Clear all hidden buffers when running 
-	function DeleteHiddenBuffers() " Vim with the 'hidden' option
-		let tpbl=[]
-		call map(range(1, tabpagenr('$')), 'extend(tpbl, tabpagebuflist(v:val))')
-		for buf in filter(range(1, bufnr('$')), 'bufexists(v:val) && index(tpbl, v:val)==-1')
-			silent execute 'bwipeout' buf
-		endfor
-	endfunction
-endif
-command! DeleteHiddenBuffers call DeleteHiddenBuffers()
+function! DeleteHiddenBuffers(bang) " Vim with the 'hidden' option
+  let tpbl=[]
+  call map(range(1, tabpagenr('$')), 'extend(tpbl, tabpagebuflist(v:val))')
+  for buf in filter(range(1, bufnr('$')), 'bufexists(v:val) && index(tpbl, v:val)==-1')
+    silent execute 'bwipeout'.a:bang buf
+  endfor
+endfunction
+command! -bang DeleteHiddenBuffers call DeleteHiddenBuffers(<q-bang>)