diff --git a/lib/koans/04_numbers.ex b/lib/koans/04_numbers.ex
index f14c087..4b70f99 100644
--- a/lib/koans/04_numbers.ex
+++ b/lib/koans/04_numbers.ex
@@ -23,12 +23,6 @@ defmodule Numbers do
     assert number == ___
   end
 
-  koan "I think I need my number as a char" do
-    char_digit = Integer.to_char_list(7)
-
-    assert char_digit == ___
-  end
-
   koan "Actually I want my number as a string" do
     string_digit = Integer.to_string(1234)
 
diff --git a/test/koans/numbers_koans_test.exs b/test/koans/numbers_koans_test.exs
index 7cda6e3..0c3847c 100644
--- a/test/koans/numbers_koans_test.exs
+++ b/test/koans/numbers_koans_test.exs
@@ -8,7 +8,6 @@ defmodule NumbersTests do
       true,
       [5, 8, 1, 2, 7],
       1234,
-      '7',
       "1234",
       42,
       " years",