diff --git a/plugins/lsp/language-servers/default.nix b/plugins/lsp/language-servers/default.nix
index 6070abf1..1d65db0e 100644
--- a/plugins/lsp/language-servers/default.nix
+++ b/plugins/lsp/language-servers/default.nix
@@ -147,6 +147,11 @@ with lib; let
       description = "Enable denols, for Deno";
       package = pkgs.deno;
     }
+    {
+      name = "efm";
+      description = "Enable efm-langserver, for misc tools";
+      package = pkgs.efm-langserver;
+    }
     {
       name = "elmls";
       description = "Enable elmls, for Elm.";
diff --git a/tests/test-sources/plugins/lsp/nvim-lsp.nix b/tests/test-sources/plugins/lsp/nvim-lsp.nix
index 6dee17be..75c9deff 100644
--- a/tests/test-sources/plugins/lsp/nvim-lsp.nix
+++ b/tests/test-sources/plugins/lsp/nvim-lsp.nix
@@ -82,6 +82,7 @@
         cssls.enable = true;
         dartls.enable = true;
         denols.enable = true;
+        efm.enable = true;
         elmls.enable = true;
         eslint.enable = true;
         elixirls.enable = true;