diff --git a/runtime/ftplugin/dosbatch.vim b/runtime/ftplugin/dosbatch.vim
index 39a83c4..91d57d9 100644
--- a/runtime/ftplugin/dosbatch.vim
+++ b/runtime/ftplugin/dosbatch.vim
@@ -17,5 +17,5 @@
 
 " Define patterns for the browse file filter
 if has("gui_win32") && !exists("b:browsefilter")
-  let b:browsefilter = "DOS Batch Files (*.bat, *.cmd)\t*.bat;*.cmd\nAll Files (*.*)\t*.*\n"
+  let b:browsefilter = "DOS Batch Files (*.bat, *.btm, *.cmd)\t*.bat;*.btm;*.cmd\nAll Files (*.*)\t*.*\n"
 endif