diff --git a/src/ch03-02-data-types.md b/src/ch03-02-data-types.md
index eb7486ce..b6065163 100644
--- a/src/ch03-02-data-types.md
+++ b/src/ch03-02-data-types.md
@@ -101,6 +101,7 @@ value.
 | 16-bit | `i16`   | `u16`    |
 | 32-bit | `i32`   | `u32`    |
 | 64-bit | `i64`   | `u64`    |
+| 128-bit | `i128`   | `u128`    |
 | arch   | `isize` | `usize`  |
 -->
 
@@ -110,6 +111,7 @@ value.
 | 16-bit | `i16`   | `u16`   |
 | 32-bit | `i32`   | `u32`   |
 | 64-bit | `i64`   | `u64`   |
+| 128-bit | `i128`   | `u128`   |
 | arch   | `isize` | `usize` |
 
 <!--