diff --git a/extra.nix b/extra.nix
index e73face..4765bcf 100644
--- a/extra.nix
+++ b/extra.nix
@@ -93,7 +93,7 @@ inputs: let
       vim.autopairs.enable = true;
 
       vim.autocomplete = {
-        enable = false;
+        enable = true;
         type = "nvim-cmp";
       };
 
diff --git a/modules/completion/nvim-cmp/nvim-cmp.nix b/modules/completion/nvim-cmp/nvim-cmp.nix
index 77c677e..bb6f7f9 100644
--- a/modules/completion/nvim-cmp/nvim-cmp.nix
+++ b/modules/completion/nvim-cmp/nvim-cmp.nix
@@ -49,10 +49,13 @@ with builtins; {
           '';
           type = types.str;
           default = "nvim_cmp_menu_map";
-          example = ''
+          example = nvim.nmd.literalAsciiDoc ''
+            [source,lua]
+            ---
             function(entry, vim_item)
               return vim_item
             end
+            ---
           '';
         };
       };
diff --git a/modules/lsp/config.nix b/modules/lsp/config.nix
index a90bd02..5e56b9c 100644
--- a/modules/lsp/config.nix
+++ b/modules/lsp/config.nix
@@ -12,7 +12,7 @@ in {
   config = mkIf cfg.enable {
     vim.startPlugins = optional usingNvimCmp "cmp-nvim-lsp";
 
-    vim.autocomplete.sources = ["nvim_lsp"];
+    vim.autocomplete.sources = {"nvim_lsp" = "[LSP]";};
 
     vim.luaConfigRC.lsp-setup = ''
       vim.g.formatsave = ${boolToString cfg.formatOnSave};
diff --git a/modules/statusline/lualine/lualine.nix b/modules/statusline/lualine/lualine.nix
index 5cd51e8..f1bd31c 100644
--- a/modules/statusline/lualine/lualine.nix
+++ b/modules/statusline/lualine/lualine.nix
@@ -42,46 +42,50 @@ in {
       default = true;
     };
 
-    theme = mkOption {
-      description = "Theme for lualine";
-      default = "auto";
-      type = types.enum (
-        [
-          "auto"
-          "16color"
-          "gruvbox"
-          "ayu_dark"
-          "ayu_light"
-          "ayu_mirage"
-          "codedark"
-          "dracula"
-          "everforest"
-          "gruvbox"
-          "gruvbox_light"
-          "gruvbox_material"
-          "horizon"
-          "iceberg_dark"
-          "iceberg_light"
-          "jellybeans"
-          "material"
-          "modus_vivendi"
-          "molokai"
-          "nightfly"
-          "nord"
-          "oceanicnext"
-          "onelight"
-          "palenight"
-          "papercolor_dark"
-          "papercolor_light"
-          "powerline"
-          "seoul256"
-          "solarized_dark"
-          "tomorrow"
-          "wombat"
-        ]
-        ++ optional (elem config.vim.theme.name supported_themes) config.vim.theme.name
-      );
-    };
+    theme = let
+      themeSupported = elem config.vim.theme.name supported_themes;
+    in
+      mkOption {
+        description = "Theme for lualine";
+        type = types.enum ([
+            "auto"
+            "16color"
+            "gruvbox"
+            "ayu_dark"
+            "ayu_light"
+            "ayu_mirage"
+            "codedark"
+            "dracula"
+            "everforest"
+            "gruvbox"
+            "gruvbox_light"
+            "gruvbox_material"
+            "horizon"
+            "iceberg_dark"
+            "iceberg_light"
+            "jellybeans"
+            "material"
+            "modus_vivendi"
+            "molokai"
+            "nightfly"
+            "nord"
+            "oceanicnext"
+            "onelight"
+            "palenight"
+            "papercolor_dark"
+            "papercolor_light"
+            "powerline"
+            "seoul256"
+            "solarized_dark"
+            "tomorrow"
+            "wombat"
+          ]
+          ++ optional themeSupported config.vim.theme.name);
+        default = "auto";
+        # TODO: xml generation error if the closing '' is on a new line.
+        # issue: https://gitlab.com/rycee/nmd/-/issues/10
+        defaultText = nvim.nmd.literalAsciiDoc ''`config.vim.theme.name` if theme supports lualine else "auto"'';
+      };
 
     sectionSeparator = {
       left = mkOption {
diff --git a/modules/visuals/visuals.nix b/modules/visuals/visuals.nix
index b1794c1..4981961 100644
--- a/modules/visuals/visuals.nix
+++ b/modules/visuals/visuals.nix
@@ -4,7 +4,9 @@
   ...
 }:
 with lib;
-with builtins; {
+with builtins; let
+  cfg = config.vim.visuals;
+in {
   options.vim.visuals = {
     enable = mkEnableOption "Visual enhancements.";