diff --git a/config/.config/nvim/lazy-lock.json b/config/.config/nvim/lazy-lock.json
index c4830b3..5122153 100644
--- a/config/.config/nvim/lazy-lock.json
+++ b/config/.config/nvim/lazy-lock.json
@@ -63,6 +63,7 @@
   "nvim-surround": { "branch": "main", "commit": "4f0e1f470595af067eca9b872778d83c7f52f134" },
   "nvim-treesitter": { "branch": "master", "commit": "80f66cdef147bd8d8a619dfd9b18da37af5ceaf6" },
   "nvim-web-devicons": { "branch": "master", "commit": "5de460ca7595806044eced31e3c36c159a493857" },
+  "omnisharp-extended-lsp.nvim": { "branch": "main", "commit": "53edfb413a54c9e55dcddc9e9fa4977a897e4425" },
   "plenary.nvim": { "branch": "master", "commit": "50012918b2fc8357b87cff2a7f7f0446e47da174" },
   "presence.nvim": { "branch": "main", "commit": "87c857a56b7703f976d3a5ef15967d80508df6e6" },
   "refactoring.nvim": { "branch": "master", "commit": "5831194debd23920a32abd9fefd5dddba44e34fc" },
diff --git a/omnisharp/.omnisharp/omnisharp.json b/omnisharp/.omnisharp/omnisharp.json
new file mode 100644
index 0000000..3420abc
--- /dev/null
+++ b/omnisharp/.omnisharp/omnisharp.json
@@ -0,0 +1,5 @@
+{
+  "RoslynExtensionsOptions": {
+    "enableDecompilationSupport": true
+  }
+}
diff --git a/vim/.vim/lua/plugins/mason.lua b/vim/.vim/lua/plugins/mason.lua
index a10baeb..fa5af16 100644
--- a/vim/.vim/lua/plugins/mason.lua
+++ b/vim/.vim/lua/plugins/mason.lua
@@ -2,6 +2,7 @@ return {
 	"williamboman/mason-lspconfig.nvim",
 	dependencies = {
 		"williamboman/mason.nvim",
+		"Hoffs/omnisharp-extended-lsp.nvim",
 	},
 	config = function()
 		local TableConcat = require("utils").TableConcat
@@ -53,6 +54,9 @@ return {
 			end,
 			["omnisharp_mono"] = function()
 				require("lspconfig").omnisharp.setup({
+					handlers = {
+						["textDocument/definition"] = require("omnisharp_extended").handler,
+					},
 					-- cmd = { "dotnet", "/path/to/omnisharp/OmniSharp.dll" },
 
 					-- Enables support for reading code style, naming convention and analyzer