diff --git a/after/plugin/lsp.lua b/after/plugin/lsp.lua
index c2f3641..1729320 100644
--- a/after/plugin/lsp.lua
+++ b/after/plugin/lsp.lua
@@ -21,10 +21,12 @@ lsp.ensure_installed({
 lsp.configure("efm", {
   settings = {
     languages = {
-      sh = "shellcheck -x"
+      sh = "shellcheck -x",
+      bash = "shellcheck -x",
+      zsh = "shellcheck -x",
     }
   },
-  filetypes = { "sh" }
+  filetypes = { "sh", "bash", "zsh" }
 })
 
 lsp.on_attach(function(client, bufnr)
diff --git a/after/plugin/treesitter.lua b/after/plugin/treesitter.lua
index e203f05..e69b2d4 100644
--- a/after/plugin/treesitter.lua
+++ b/after/plugin/treesitter.lua
@@ -35,7 +35,7 @@ require 'nvim-treesitter.configs'.setup {
 
   highlight = {
     enable = true,
-    disable = { "latex" },
+    disable = { "latex", "perl" },
     additional_vim_regex_highlighting = false,
   },
 }