diff --git a/elixir.md b/elixir.md
index e3d0fef20..48eece3af 100644
--- a/elixir.md
+++ b/elixir.md
@@ -145,25 +145,26 @@ end
 
 ### Primitives
 
-| Sample                  | Type          |
-| ---                     | ---           |
-| `nil`                   | Nil/null      |
-| `true` _/_ `false`      | Boolean       |
-| ---                     | ---           |
-| `23`                    | Integer       |
-| `3.14`                  | Float         |
-| ---                     | ---           |
-| `'hello'`               | Char list     |
-| `<<2, 3>>`              | Binary        |
-| `"hello"`               | Binary string |
-| `:hello`                | Atom          |
-| ---                     | ---           |
-| `[a, b]`                | List          |
-| `{a, b}`                | Tuple         |
-| ---                     | ---           |
-| `%{a: "hello"}`         | Map           |
-| `%MyStruct{a: "hello"}` | Struct        |
-| `fn -> ... end`         | Function      |
+| Sample                  | Type            |
+| ---                     | ---             |
+| `nil`                   | Nil/null        |
+| `true` _/_ `false`      | Boolean         |
+| ---                     | ---             |
+| `?a`                    | Integer (ASCII) |
+| `23`                    | Integer         |
+| `3.14`                  | Float           |
+| ---                     | ---             |
+| `'hello'`               | Char list       |
+| `<<2, 3>>`              | Binary          |
+| `"hello"`               | Binary string   |
+| `:hello`                | Atom            |
+| ---                     | ---             |
+| `[a, b]`                | List            |
+| `{a, b}`                | Tuple           |
+| ---                     | ---             |
+| `%{a: "hello"}`         | Map             |
+| `%MyStruct{a: "hello"}` | Struct          |
+| `fn -> ... end`         | Function        |
 
 ### Type checks