diff --git a/lua/fzf-lua/previewer/builtin.lua b/lua/fzf-lua/previewer/builtin.lua
index ba9fc3ad..4f36eaf3 100644
--- a/lua/fzf-lua/previewer/builtin.lua
+++ b/lua/fzf-lua/previewer/builtin.lua
@@ -1013,6 +1013,9 @@ function Previewer.buffer_or_file:set_cursor_hl(entry)
       or self.opts.__ACT_TO == mgrep.live_grep and self.opts.search or nil
   if regex and self.opts.rg_glob and self.opts.glob_separator then
     regex = require("fzf-lua.make_entry").glob_parse(regex, self.opts)
+    if self.opts.cmd:match("%-%-fixed-strings") or self.opts.cmd:match("%-F") then
+      regex = utils.rg_escape(regex)
+    end
   end
 
   -- If called from tags previewer, can happen when using ctags cmd