diff --git a/README.md b/README.md
index e1dbe61..1218d78 100644
--- a/README.md
+++ b/README.md
@@ -307,6 +307,12 @@ get "/auth/microsoft/callback", MicrosoftAuthController, :index
 
 With all that hooked up you should now have everything working.
 
+> [!NOTE]
+>
+> You can define your callback path with an environment variable
+> `MICROSOFT_CALLBACK_PATH` 
+> or by using the config property `:callback_path` in your config files.
+
 ### 6.1 Give it a try!
 
 The home page of the app 
diff --git a/demo/lib/app_web/microsoft_auth.ex b/demo/lib/app_web/microsoft_auth.ex
index 4689bb3..cfad462 100644
--- a/demo/lib/app_web/microsoft_auth.ex
+++ b/demo/lib/app_web/microsoft_auth.ex
@@ -159,7 +159,7 @@ defmodule ElixirAuthMicrosoft do
   end
 
   defp get_callback_path do
-    System.get_env("MICROSOFT_CALLBACK_PATH") || @default_callback_path
+    System.get_env("MICROSOFT_CALLBACK_PATH") || Application.get_env(:elixir_auth_microsoft, :callback_path) || @default_callback_path
   end
 
 
diff --git a/lib/elixir_auth_microsoft.ex b/lib/elixir_auth_microsoft.ex
index 80b0012..97baf03 100644
--- a/lib/elixir_auth_microsoft.ex
+++ b/lib/elixir_auth_microsoft.ex
@@ -161,7 +161,7 @@ defmodule ElixirAuthMicrosoft do
   end
 
   defp get_callback_path do
-    System.get_env("MICROSOFT_CALLBACK_PATH") || @default_callback_path
+    System.get_env("MICROSOFT_CALLBACK_PATH") || Application.get_env(:elixir_auth_microsoft, :callback_path) || @default_callback_path
   end