diff --git a/lua/persisted/config.lua b/lua/persisted/config.lua
index c271640..61878bd 100644
--- a/lua/persisted/config.lua
+++ b/lua/persisted/config.lua
@@ -37,73 +37,75 @@ function M.setup(opts)
   M.options = vim.tbl_deep_extend("force", {}, defaults, opts or {})
   vim.fn.mkdir(M.options.save_dir, "p")
 
-  if opts.before_source then
-    require("persisted.deprecate").write(
-      "----------\n",
-      "The use of the ",
-      { "before_source", "ErrorMsg" },
-      " callback.\nPlease replace with the ",
-      { "PersistedLoadPre", "WarningMsg" },
-      { " user event. This will be removed from the plugin on " },
-      { "2023-03-05", "WarningMsg" }
-    )
-  end
-  if opts.after_source then
-    require("persisted.deprecate").write(
-      "----------\n",
-      "The use of the ",
-      { "after_source", "ErrorMsg" },
-      " callback.\nPlease replace with the ",
-      { "PersistedLoadPost", "WarningMsg" },
-      { " user event. This will be removed from the plugin on " },
-      { "2023-03-05", "WarningMsg" }
-    )
-  end
-  if opts.before_save then
-    require("persisted.deprecate").write(
-      "----------\n",
-      "The use of the ",
-      { "before_save", "ErrorMsg" },
-      " callback.\nPlease replace with the ",
-      { "PersistedSavePre", "WarningMsg" },
-      { " user event. This will be removed from the plugin on " },
-      { "2023-03-05", "WarningMsg" }
-    )
-  end
-  if opts.after_save then
-    require("persisted.deprecate").write(
-      "----------\n",
-      "The use of the ",
-      { "after_save", "ErrorMsg" },
-      " callback.\nPlease replace with the ",
-      { "PersistedSavePost", "WarningMsg" },
-      { " user event. This will be removed from the plugin on " },
-      { "2023-03-05", "WarningMsg" }
-    )
-  end
+  if opts then
+    if opts.before_source then
+      require("persisted.deprecate").write(
+        "----------\n",
+        "The use of the ",
+        { "before_source", "ErrorMsg" },
+        " callback.\nPlease replace with the ",
+        { "PersistedLoadPre", "WarningMsg" },
+        { " user event. This will be removed from the plugin on " },
+        { "2023-03-05", "WarningMsg" }
+      )
+    end
+    if opts.after_source then
+      require("persisted.deprecate").write(
+        "----------\n",
+        "The use of the ",
+        { "after_source", "ErrorMsg" },
+        " callback.\nPlease replace with the ",
+        { "PersistedLoadPost", "WarningMsg" },
+        { " user event. This will be removed from the plugin on " },
+        { "2023-03-05", "WarningMsg" }
+      )
+    end
+    if opts.before_save then
+      require("persisted.deprecate").write(
+        "----------\n",
+        "The use of the ",
+        { "before_save", "ErrorMsg" },
+        " callback.\nPlease replace with the ",
+        { "PersistedSavePre", "WarningMsg" },
+        { " user event. This will be removed from the plugin on " },
+        { "2023-03-05", "WarningMsg" }
+      )
+    end
+    if opts.after_save then
+      require("persisted.deprecate").write(
+        "----------\n",
+        "The use of the ",
+        { "after_save", "ErrorMsg" },
+        " callback.\nPlease replace with the ",
+        { "PersistedSavePost", "WarningMsg" },
+        { " user event. This will be removed from the plugin on " },
+        { "2023-03-05", "WarningMsg" }
+      )
+    end
 
-  -- Telescope
-  if opts.telescope and opts.telescope.before_source then
-    require("persisted.deprecate").write(
-      "----------\n",
-      "The use of the ",
-      { "telescope.before_source", "ErrorMsg" },
-      " callback.\nPlease replace with the ",
-      { "PersistedTelescopeLoadPre", "WarningMsg" },
-      { " user event. This will be removed from the plugin on "},
-      { "2023-03-05", "WarningMsg" }
-    )
-  end
-  if opts.telescope and opts.telescope.after_source then
-    require("persisted.deprecate").write(
-      "----------\n",
-      "The use of the ",
-      { "telescope.after_source", "ErrorMsg" },
-      " callback.\nPlease replace with the ",
-      { "PersistedTelescopeLoadPost", "WarningMsg" },
-      { " user event. This will be removed from the plugin on "},
-      { "2023-03-05", "WarningMsg" }
-    )
+    -- Telescope
+    if opts.telescope and opts.telescope.before_source then
+      require("persisted.deprecate").write(
+        "----------\n",
+        "The use of the ",
+        { "telescope.before_source", "ErrorMsg" },
+        " callback.\nPlease replace with the ",
+        { "PersistedTelescopeLoadPre", "WarningMsg" },
+        { " user event. This will be removed from the plugin on " },
+        { "2023-03-05", "WarningMsg" }
+      )
+    end
+    if opts.telescope and opts.telescope.after_source then
+      require("persisted.deprecate").write(
+        "----------\n",
+        "The use of the ",
+        { "telescope.after_source", "ErrorMsg" },
+        " callback.\nPlease replace with the ",
+        { "PersistedTelescopeLoadPost", "WarningMsg" },
+        { " user event. This will be removed from the plugin on " },
+        { "2023-03-05", "WarningMsg" }
+      )
+    end
   end
 end