diff --git a/README.md b/README.md
index 25f6ea3..c70f5bf 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ defmodule Example do
 
   ## Private
 
-  def private_function(a) do
+  defp private_function(a) do
     {:private, a}
   end
 end
@@ -120,4 +120,4 @@ The other libraries adopt a different definition of mock, one that is more in li
 
 ## Reporting Issues
 
-This comparison was assembled by following the documentation for each project to the best of my ability, but that's no guarantee that each test is implemented correctly.  If an issue in the tests is found, an issue or pull request is welcome.
\ No newline at end of file
+This comparison was assembled by following the documentation for each project to the best of my ability, but that's no guarantee that each test is implemented correctly.  If an issue in the tests is found, an issue or pull request is welcome.