diff --git a/preserves.md b/preserves.md
index bf16156..b633d6d 100644
--- a/preserves.md
+++ b/preserves.md
@@ -886,7 +886,7 @@ values.
 
 | Integer range                              | Bytes required | Encoding (hex)                               |
 | ---                                        | ---            | ---                                          |
-| -3 ≤ n ≤ 12                                | 1              | `3X`                                         |
+| -3 ≤ n ≤ 12                                | 1              | `9X`                                         |
 | -2<sup>7</sup> ≤ n < 2<sup>7</sup> (i8)    | 2              | `A0` `XX`                                    |
 | -2<sup>15</sup> ≤ n < 2<sup>15</sup> (i16) | 3              | `A1` `XX` `XX`                               |
 | -2<sup>23</sup> ≤ n < 2<sup>23</sup> (i24) | 4              | `A2` `XX` `XX` `XX`                          |