diff --git a/runtime/ftplugin/rrst.vim b/runtime/ftplugin/rrst.vim
index 3e82847..a56fd64 100644
--- a/runtime/ftplugin/rrst.vim
+++ b/runtime/ftplugin/rrst.vim
@@ -2,7 +2,7 @@
 " Language: reStructuredText documentation format with R code
 " Maintainer: Jakson Alves de Aquino <jalvesaq@gmail.com>
 " Homepage: https://github.com/jalvesaq/R-Vim-runtime
-" Last Change:	Wed Nov 01, 2017  10:47PM
+" Last Change:	Sat Aug 15, 2020  12:02PM
 " Original work by Alex Zvoleff
 
 " Only do this when not yet done for this buffer
@@ -37,7 +37,7 @@
   setlocal formatexpr=FormatRrst()
 endif
 
-if has("gui_win32") && !exists("b:browsefilter")
+if (has("gui_win32") || has("gui_gtk")) && !exists("b:browsefilter")
   let b:browsefilter = "R Source Files (*.R *.Rnw *.Rd *.Rmd *.Rrst)\t*.R;*.Rnw;*.Rd;*.Rmd;*.Rrst\n" .
         \ "All Files (*.*)\t*.*\n"
 endif